CN112911449B - TWS bluetooth headset - Google Patents
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- CN112911449B CN112911449B CN202110241581.8A CN202110241581A CN112911449B CN 112911449 B CN112911449 B CN 112911449B CN 202110241581 A CN202110241581 A CN 202110241581A CN 112911449 B CN112911449 B CN 112911449B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a TWS Bluetooth headset, which comprises a first headset and a second headset; the first earphone comprises a first Bluetooth module, a first controller and a first in-ear detection module; the first Bluetooth module and the first in-ear detection module are respectively connected with the first controller; the second earphone comprises a second Bluetooth module, a second controller and a second in-ear detection module; the second Bluetooth module and the second in-ear detection module are respectively connected with the second controller; the first in-ear detection module and the second in-ear detection module are used for detecting whether the Bluetooth headset is worn and outputting a detection signal; the first controller and/or the second controller are configured with standard earphone distance; the first Bluetooth module and the second Bluetooth module are connected in a pairing mode, and when the detection signals received by the first controller and the second controller are worn, the distance between the first controller and the second controller is measured, and whether the distance between the earphones is within the range of the standard distance of the earphones is judged; if not, the first earphone and the second earphone are controlled to close the noise reduction function, and power consumption is reduced.
Description
Technical Field
The invention belongs to the technical field of earphones, and particularly relates to a TWS Bluetooth earphone.
Background
The left earphone and the right earphone of the TWS Bluetooth earphone form a stereo system through Bluetooth, and the two earphones can be shared independently and also can be used as two earphones. TWS bluetooth headsets are gaining increasing acceptance due to their ease of use.
Existing TWS headphones are configured with a noise reduction function and turn off the noise reduction mode when worn by one ear. And when the left ear and the right ear of the TWS earphone are worn by two persons to listen to songs together, because the two ears are in a wearing mode, the noise reduction mode is not automatically closed, the electricity consumption of the earphone is caused, and the wearing experience is not good.
Disclosure of Invention
The invention provides a TWS Bluetooth headset which judges whether the TWS Bluetooth headset is worn by the same person or not according to the headset distance, and automatically closes a noise reduction mode if the TWS Bluetooth headset is worn by a non-same person, so that the wearing experience of a user is improved, the energy consumption is reduced, and the standby time is prolonged.
In order to solve the technical problems, the invention adopts the following technical scheme:
a TWS Bluetooth headset comprises a first headset and a second headset;
the first earphone comprises a first Bluetooth module, a first controller and a first in-ear detection module; the first Bluetooth module and the first in-ear detection module are respectively connected with the first controller; the first in-ear detection module is used for detecting whether the first earphone is worn or not and outputting a first detection signal to the first controller;
the second earphone comprises a second Bluetooth module, a second controller and a second in-ear detection module; the second Bluetooth module and the second in-ear detection module are respectively connected with the second controller; the second in-ear detection module is used for detecting whether the second earphone is worn or not and outputting a second detection signal to the second controller;
the first controller and the second controller are both configured with earphone standard distances; when the first Bluetooth module and the second Bluetooth module are connected in a pairing mode and the first detection signal and the second detection signal are both worn, the first earphone and the second earphone measure the distance between the first earphone and the second earphone, and the distance is an earphone distance;
and the first controller and/or the second controller judges whether the earphone distance is within the range of the standard earphone distance, if not, the first controller and the second controller correspondingly control the first earphone and the second earphone to close the noise reduction function respectively.
In an embodiment, the first controller and the second controller are configured to measure the headset distance between the first headset and the second headset when it is determined that the noise reduction function is turned on and the received first detection signal and the received second detection signal are both worn, and to measure the headset distance again and determine whether the headset distance is within the standard headset distance range each time the first detection signal and the second detection signal which are received again are both worn.
In one embodiment, the first controller and the second controller are further configured with a set time;
when the measured earphone distance is within the range of the earphone standard distance, recording the measured earphone distance as a first earphone distance; after waiting for the set time, measuring the earphone distance again and recording the measured earphone distance as a second earphone distance;
judging whether the second earphone distance is within an allowable error range of the first earphone distance;
if so, judging that the first earphone and the second earphone are worn by the same person, and controlling the first earphone and the second earphone not to automatically close the noise reduction function by the first controller and the second controller respectively;
if not, the first earphone and the second earphone are judged to be worn by different people, and the first controller and the second controller respectively control the first earphone and the second earphone to close the noise reduction function.
In one embodiment, the standard distance of the earphone is configured by the first controller and the second controller to be within a range of 15cm to 25 cm.
In an embodiment, the allowable error range of the second earphone distance relative to the first earphone distance is ± 1 cm.
In one embodiment, the set time is in the range of 1-5 minutes.
In one embodiment, the set time is 1 minute.
In some embodiments, the first headset is bluetooth communicatively connected to the second headset and the headset distance is measured by RSSI techniques.
In some embodiments, the first in-ear detection module and the second in-ear detection module employ an infrared detection module or a capacitance detection module.
In some embodiments, the first bluetooth module is an integral chip with the first controller; the second Bluetooth module and the second controller are integrated into a chip.
Compared with the prior art, the invention has the advantages and positive effects that: the TWS Bluetooth headset is used for setting the standard distance of the headset and measuring the headset distance of the two headsets, judging whether the headset distance is within the range of the standard distance of the headset, and further judging whether the two headsets are worn by the same person; a noise reduction function which is kept open when the same person wears the noise reduction device; when the two earphones are judged to be worn by the same person, the first earphone and the second earphone are controlled to automatically close and open the noise reduction function, the energy consumption of the TWS Bluetooth earphone is reduced, and the standby time is further prolonged; the energy consumption of the TWS Bluetooth headset is reduced, the energy waste is reduced, and the environment is protected. In addition, the noise reduction function is closed under the condition of no noise reduction effect, so that a user does not feel pressing when wearing the glasses, and the wearing comfort of the user is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a TWS Bluetooth headset according to an embodiment of the present invention;
fig. 2 is a control flow diagram of an embodiment of a TWS bluetooth headset according to the present invention.
In the figure, the position of the upper end of the main shaft,
1. a first Bluetooth module; 2. a first controller; 3. a first in-ear detection module; 4. a first playing module; 5. a second Bluetooth module; 6. a second controller; 7. a second in-ear detection module; 8. and a second playing module.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 and 2, a TWS bluetooth headset of the present invention includes a first headset and a second headset.
The first earphone comprises a first Bluetooth module 1, a first controller 2 and a first in-ear detection module 3; the first Bluetooth module 1 and the first in-ear detection module 3 are respectively connected with the first controller 2; the first in-ear detection module 3 is configured to detect whether the first earphone is worn by the user and output a first detection signal to the first controller 2.
The second earphone comprises a second Bluetooth module 5, a second controller 6 and a second in-ear detection module 7; the second Bluetooth module 5 and the second in-ear detection module 7 are respectively connected with the second controller 6; the second in-ear detection module 7 is configured to detect whether the second earphone is worn by the user and output a second detection signal to the second controller 6.
One of the first earphone and the second earphone is used as a main communication earphone to communicate with the intelligent equipment and receive the audio signal of the intelligent equipment. The first earphone and the second earphone are connected through Bluetooth communication. And transmitting the received audio signals, and playing the received audio signals by the first earphone and the second earphone through the first playing module 4 and the second playing module 8.
The first controller 2 and or the second controller 6 are each configured with a headset standard distance, which is a length range set according to the average distance of both ears of a person. When the TWS Bluetooth headset is turned on and the first Bluetooth module 1 and the second Bluetooth module 5 are successfully connected in a pairing mode, the first controller 2 and the second controller 6 respectively judge the received first detection signal and the second detection signal; when the first controller 2 and the second controller 6 judge that the received first detection signal and the second detection signal are both worn, the first earphone and the second earphone measure the distance between the first earphone and the second earphone, and the distance is the earphone distance.
The first controller 2 and/or the second controller 6 judges whether the earphone distance is within the range of the earphone standard distance. If the distance between the earphones is within the range of the standard distance of the earphones, the first controller 2 and the second controller 6 respectively and correspondingly control the first earphones and the second earphones not to close the noise reduction function; if the distance between the earphones is not within the range of the standard distance between the earphones, the first controller 2 and the second controller 6 correspondingly control the first earphone and the second earphone to close the noise reduction function respectively.
The TWS bluetooth headset of the present invention is provided with a headset standard distance, which is set according to the distance between both ears of a person. When the TWS Bluetooth headset is worn, the distance between the first headset and the second headset is measured, and whether the headset distance is within the range of the standard headset distance is judged. When the earphone distance is judged to be within the standard earphone distance range, the first earphone and the second earphone are considered to be worn by the same person, and the opened noise reduction mode is not controlled. And when the earphone distance is judged not to be within the standard distance range of the earphones, the first earphones and the second earphones are considered to be worn by different people, and the turned-on noise reduction mode is controlled to be turned off. Because only wear the bluetooth headset who only opens the function of making an uproar of falling as the user and can not experience the noise reduction effect, and wear to experience relatively poor, will not only power consumptive but also have the noise reduction effect and influence the function of making an uproar of falling of wearing the comfort level and close, realize reducing the bluetooth headset energy consumption, reach extension bluetooth headset standby time, improve the user and wear to experience beneficial effect.
The specific structure and principle of the TWS bluetooth headset of the present invention are described in detail below with specific embodiments.
In one embodiment, referring to fig. 1 and 2, the first controller 2 and the second controller 6 are configured to determine whether the received first detection signal and the second detection signal are worn when the noise reduction function is turned on; when the earphone is worn, the earphone distance between the first earphone and the second earphone is measured, and whether the earphone distance is within the range of the standard earphone distance is judged.
When the first detection signal and/or the second detection signal is changed to be not worn, the first controller 2 and the second controller 6 re-measure the earphone distance and judge whether the earphone distance is within the range of the standard earphone distance when re-receiving the first detection signal and/or the second detection signal and judging that the earphone distance is worn. And judging whether the continuously started Bluetooth headset with the changed wearing state is worn by the same person or not, and controlling the opening or closing of the noise reduction function according to the judgment result.
Further, when the Bluetooth headset which is continuously started up is judged to be worn by a non-identical person, the operation mode of the noise reduction function is maintained; when the bluetooth headset that the judgement was lasted the start becomes to be worn by the identity people, first controller 2, second controller 6 controller respectively open and fall the function of making an uproar, continue to fall the function of making an uproar, realize the noise reduction effect.
Of course, the earphone standard distance may be configured in the first controller 2 or the second controller 6, or may be configured in both the first controller 2 and the second controller 6; the earphone distance can be measured by the first earphone or the second earphone, or by the first earphone and the second earphone respectively, or by mutually correcting the earphone distance measured by the first earphone and the earphone distance measured by the second earphone to obtain a more accurate value; the first controller 2 or the second controller 6 can judge whether the distance between the earphones is within the range of the standard distance of the earphones, the first controller 2 controls the operation mode of the noise reduction function of the first earphones, and the second controller 6 controls the operation mode of the noise reduction function of the second earphones after receiving the control signal of the first controller 2; or the first controller 2 and the second controller 6 may respectively determine whether the distance between the earphones is within the range of the standard distance between the earphones, and then the first controller 2 and the second controller 6 independently control the operating modes of the noise reduction function of the first earphones and the noise reduction function of the second earphones.
The embodiment only carries out the measurement and the judgement of earphone distance to the bluetooth headset who opens the function of making an uproar of falling, improves the operation and the control efficiency of first controller 2, second controller 6, reduces the consumption.
In addition, in this embodiment, when the first earphone and the second earphone are closed to the noise reduction function due to the fact that the first earphone and the second earphone are judged to be worn by a non-identical person, whether the first earphone and/or the second earphone is taken down and then worn again is judged, and if the first earphone and/or the second earphone is taken down and worn again, whether the first earphone and/or the second earphone is worn by the same person is judged again, so that the noise reduction function is controlled to be turned on or kept off, and the use experience of a user is improved.
In an embodiment, referring to fig. 1 and 2, the first controller 2 and/or the second controller 6 are further configured with a set time.
When the first detection signal and the second detection signal received by the first controller 2 and the second controller 6 are both worn and the noise reduction function of the first earphone and the second earphone is turned on, the earphone distance of the first earphone and the second earphone is measured and recorded as the first earphone distance.
And judging whether the first earphone distance is within the standard earphone distance range. When the first earphone distance is within the earphone standard distance range; and after waiting for the set time, re-measuring the earphone distance between the first earphone and the second earphone, and recording as the second earphone distance.
And judging whether the second earphone distance is within the allowable error range of the first earphone distance. If the distance between the second earphone and the first earphone is within the allowable error range, the first earphone and the second earphone are judged to be worn by the same person, and the first controller 2 and the second controller 6 respectively control the first earphone and the second earphone not to automatically close the noise reduction function.
If the distance between the second earphone and the first earphone is not within the allowable error range of the distance between the first earphone and the second earphone, the first earphone and the second earphone are judged to be worn by different people, and the first controller 2 and the second controller 6 respectively control the first earphone and the second earphone to close the noise reduction function.
The embodiment sets time through configuration, and determine first earphone distance tentatively in the scope of earphone standard distance, the second earphone waits for the set time after wearing for same person, then remeasure the earphone distance second earphone distance of first earphone and second earphone again, and compare first earphone distance and second earphone distance, first earphone and the second earphone of wearing according to different people have the distance to remove in the set time, further judge first earphone, whether the second earphone is worn for same person, improve the accuracy of judged result.
Of course, the times and frequency of the earphone distance between the first earphone and the second earphone can be increased, the accuracy of judging whether the first earphone and the second earphone are worn by the same person is improved, the accuracy and the reliability of control are improved, misjudgment and miscontrol are prevented, and the user experience is improved.
In one embodiment, referring to fig. 1 and 2, the standard distance of the earphones configured by the first controller 2 and the second controller 6 is in a range of 15cm to 25 cm.
And when the measured earphone distance is between 15cm and 25cm, judging that the first earphone and the second earphone are worn by the same person, and controlling the first controller 2 and the second controller 6 not to automatically close the noise reduction function. When the measured earphone distance is smaller than 15cm or larger than 25cm, the first earphone and the second earphone are judged to be worn by different people, and the first controller 2 and the second controller 6 control the first earphone and the second earphone to automatically close the noise reduction function.
In one embodiment, the allowable error range of the second earphone distance relative to the first earphone distance is ± 1 cm. Namely, when the measured first earphone distance is Acm, if the measured second earphone distance Bcm meets the condition that A-1 is more than or equal to B and is less than or equal to A +1, the first earphone and the second earphone are confirmed to be worn by the same person. Of course, the error range can be set according to the error of the technical means adopted by the distance measurement.
Preferably, the set time is in the range of 1 to 5 minutes.
More preferably, the set time is 1 minute.
In one embodiment, the first headset is bluetooth communicatively coupled to the second headset and the headset distance is measured via RSSI techniques.
The specific calculation method is as follows, and the calculation formula is that d = 10^ (abs (rssi) -a/(10 ^ n))
In the formula:
d earphone distance
abs () is evaluated for absolute values since rssi is a negative number
rssi Signal Strength
a signal strength at a distance of one meter from the Bluetooth device
n is the environmental attenuation factor
Due to the difference of the Bluetooth devices, a and n are obtained by trial and error and comparison with the actual distance.
This embodiment measures the earphone distance of first earphone, second earphone through first bluetooth module 1, the 5 second bluetooth modules of first earphone, the configuration of second earphone itself, need not to set up separately range module, reduce cost. In addition, the RSSI technology range finding overcomes the limitation that infrared and laser range finding and the like need no shielding objects, is simpler to realize and has wider applicability.
Preferably, the first bluetooth module 1 and the first controller 2 are integrated into a chip; the second Bluetooth module 5 and the second controller 6 are integrated into a chip, so that the wiring difficulty of the Bluetooth headset is reduced, and the size of the Bluetooth headset is reduced.
In an embodiment, the first in-ear detection module 3 and the second in-ear detection module 7 employ an infrared detection module or a capacitance detection module. Of course, other modules that enable in-ear detection may be used.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A TWS Bluetooth headset, comprising:
the first earphone comprises a first Bluetooth module, a first controller and a first in-ear detection module; the first Bluetooth module and the first in-ear detection module are respectively connected with the first controller; the first in-ear detection module is used for detecting whether the first earphone is worn or not and outputting a first detection signal to the first controller;
the second earphone comprises a second Bluetooth module, a second controller and a second in-ear detection module; the second Bluetooth module and the second in-ear detection module are respectively connected with the second controller; the second in-ear detection module is used for detecting whether the second earphone is worn or not and outputting a second detection signal to the second controller;
the first controller and the second controller are both configured with earphone standard distances; when the first Bluetooth module and the second Bluetooth module are connected in a pairing mode and the first detection signal and the second detection signal are both worn, the first earphone and the second earphone measure the distance between the first earphone and the second earphone, and the distance is an earphone distance;
and the first controller and/or the second controller judge whether the distance between the earphones is within the range of the standard distance between the earphones, and if not, the first controller and the second controller correspondingly control the first earphones and the second earphones to close the noise reduction function respectively.
2. The TWS Bluetooth headset of claim 1, wherein the first controller and the second controller are configured to measure the headset distance between the first headset and the second headset when it is determined that the noise reduction function is turned on and the received first detection signal and the received second detection signal are both worn, and to re-measure the headset distance and determine whether the headset distance is within the standard headset distance range each time the re-received first detection signal and the second detection signal are both worn.
3. The TWS Bluetooth headset of claim 2, wherein the first controller, the second controller are further configured with a set time;
when the measured earphone distance is within the range of the earphone standard distance, recording the measured earphone distance as a first earphone distance; after waiting for the set time, measuring the earphone distance again and recording the measured earphone distance as a second earphone distance;
judging whether the second earphone distance is within an allowable error range of the first earphone distance;
if so, judging that the first earphone and the second earphone are worn by the same person, and controlling the first earphone and the second earphone not to automatically close the noise reduction function by the first controller and the second controller respectively;
if not, the first earphone and the second earphone are judged to be worn by different people, and the first controller and the second controller respectively control the first earphone and the second earphone to close the noise reduction function.
4. A TWS Bluetooth headset according to claim 3, wherein the first controller, the second controller configure the headset a standard distance in a range of 15cm to 25 cm.
5. A TWS Bluetooth headset according to claim 3, wherein the second headset distance is within ± 1cm of an allowable error range with respect to the first headset distance.
6. A TWS Bluetooth headset according to claim 3, wherein the set time is in the range of 1-5 minutes.
7. A TWS Bluetooth headset according to claim 6, wherein the set time is 1 minute.
8. A TWS Bluetooth headset according to any one of claims 1 to 7, wherein the first headset is Bluetooth communicatively connected to the second headset and the headset distance is measured by RSSI technique.
9. The TWS Bluetooth headset of claim 8, wherein the first in-ear detection module and the second in-ear detection module employ an infrared detection module or a capacitive detection module.
10. A TWS Bluetooth headset according to claim 8, wherein the first Bluetooth module is an integral chip with the first controller; the second Bluetooth module and the second controller are integrated into a chip.
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| CN113411714A (en) * | 2021-07-01 | 2021-09-17 | 昆山睿翔讯通通信技术有限公司 | Antenna signal intensity-based in-ear detection method for TWS (two way transmission) headset and TWS headset |
| CN114666445B (en) * | 2022-02-25 | 2023-09-01 | 华为技术有限公司 | Communication method, device, chip and readable storage medium |
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| GB0606630D0 (en) * | 2006-04-01 | 2006-05-10 | Sonaptic Ltd | Ambient noise-reduction control system |
| CN209748772U (en) * | 2019-06-19 | 2019-12-06 | 惠州联韵声学科技有限公司 | Active noise reduction double-ear automatic debugging pairing system for TWS (two way communication system) Bluetooth headset |
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