CN107426645A - A kind of multifunctional sound box - Google Patents
A kind of multifunctional sound box Download PDFInfo
- Publication number
- CN107426645A CN107426645A CN201710723145.8A CN201710723145A CN107426645A CN 107426645 A CN107426645 A CN 107426645A CN 201710723145 A CN201710723145 A CN 201710723145A CN 107426645 A CN107426645 A CN 107426645A
- Authority
- CN
- China
- Prior art keywords
- main board
- pcb main
- drain pan
- sound box
- led lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011324 bead Substances 0.000 claims abstract description 17
- 210000005056 cell body Anatomy 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000000741 silica gel Substances 0.000 claims description 18
- 229910002027 silica gel Inorganic materials 0.000 claims description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 12
- 101150006573 PAN1 gene Proteins 0.000 description 16
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 206010011469 Crying Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- -1 face-piece 2 Proteins 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
Abstract
The present invention relates to a kind of multifunctional sound box, including drain pan, face-piece, PCB main board, loudspeaker and LED lamp panel, the drain pan is cuboid trough body structure, and LED lamp bead array is provided with the LED lamp panel, and the face-piece is fixed PCB main board, loudspeaker and LED lamp panel and is encapsulated in the cell body of drain pan；Button is additionally provided with the PCB main board；The PCB main board electrically connects with loudspeaker and LED lamp panel respectively, by the way that different mode of operations may be selected by key control PCB main board.The invention mainly comprises PCB main board, loudspeaker and LED lamp panel, control loudspeaker to realize basic music playing function by PCB main board, further, different mode of operations can also be selected by button, and then PCB main board is controlled to realize multiple functions, such as illumination functions and display specific font.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of multifunctional sound box.
Background technology
There are many portable loudspeaker boxes on the market, portable loudspeaker box has the advantages of compact, low in energy consumption, is convenient for people to
Carry out use during outdoor exercises.On the other hand, with the development of economy and society, people increasingly pay attention to health, outdoor exercises by
Gradually turn into a kind of new life style of mankind's amusement, leisure and lifting quality of life.
The portable audio box function that prior art is provided is excessively single, it is impossible to meets that people are carrying out outdoor exercises when institute
The various demands being likely encountered.For example, a lot of indicative functions of the light of conventional portable audio amplifier, do not reach illuminating effect, less
Specific font can be shown by light.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention proposes a kind of multifunctional sound box, has perfect in shape and function
Advantage.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of multifunctional sound box, including drain pan, face-piece, PCB
Mainboard, loudspeaker and LED lamp panel, the drain pan are cuboid trough body structure, and LED lamp bead array, institute are provided with the LED lamp panel
Face-piece is stated to be encapsulated in the cell body of drain pan the fixation of PCB main board, loudspeaker and LED lamp panel；Multiple apertures are offered on the face-piece,
The aperture is used for entrant sound and printing opacity；
Button is additionally provided with the PCB main board, the side of the drain pan is provided with through hole corresponding with button；It is described to press
Key uses silica gel push-button, and feel is more preferable；
The PCB main board electrically connects with loudspeaker and LED lamp panel respectively, different by may be selected by key control PCB main board
Mode of operation.
It is using the beneficial effect of such scheme：The invention mainly comprises PCB main board, loudspeaker and LED lamp panel, pass through PCB
Mainboard control loudspeaker can realize basic music playing function, further, different Working moulds can also be selected by button
Formula, and then control PCB main board to realize multiple functions, such as illumination functions and display specific font.
Further, DC OUT interfaces and DC IN interfaces are additionally provided with the PCB main board, the side of the drain pan is set
It is equipped with through hole corresponding with DC OUT interfaces and DC IN interfaces；The DC OUT interfaces use USB interface；Pass through DC IN interfaces
This multifunctional sound box can be given to charge, provide electric energy for normal work, electrical power storage can also be got up, in case of emergency can be with
To charging of mobile devices.
Further, the side of the drain pan is provided with silica gel catch, and the silica gel catch is arranged on DCOUT interfaces and DC
Outside IN interfaces；The advantages of silica gel catch after deformation with easily resiling, silica gel is put in DC OUT interfaces and DC IN interface peripherals
Catch, the direct exposed of interface is avoided by simple structure, realize dust-proof and protection effect.
Further, it is additionally provided with transparent panel between the LED lamp panel and face-piece；Because this multifunctional sound box is applied to more
Outdoor Scene, inevitable that rainy risk, by setting transparent panel between LED lamp panel and face-piece, it becomes possible to
LED lamp panel and external environment isolation are come, and realize water-proof function.
Further, display screen is additionally provided with the PCB main board, the side of the drain pan is provided with display eyeglass, institute
Display eyeglass is stated to be arranged on outside display screen；Because this multifunctional sound box has a variety of different mode of operations, grasped by button
During work, specifying information can be shown by display screen；And show eyeglass and then play a part of protecting display screen.
Further, in addition to battery plate and battery, the battery plate are arranged on PCB main board, and the battery is consolidated
Surely battery plate, PCB main board (3) are arranged between drain pan；Battery plate is set, battery preferably can be fixed on drain pan
It is interior.
Further, the drain pan bottom offers mounting hole, and the face-piece is arranged on drain pan by mounting hole and screw
On, it is additionally provided with silica gel plug in the mounting hole；In this multifunctional sound box of horizontal, silica gel plug has good antiskid function,
Prevent from dropping accidentally.
Further, lanyard hole is additionally provided with the drain pan, be convenient for carrying.
Further, gyro sensor is additionally provided with the PCB main board, use can be perceived by gyro sensor
This multifunctional sound box is shaken at family, realizes glo-stick function.
Further, locating piece is provided with the medial surface of the drain pan, is offered on the PCB main board and locating piece pair
The groove answered, the PCB main board are arranged on drain pan by the corresponding grafting of locating piece and groove.
Further, the mode of operation includes glo-stick pattern, alarm clock mode, timing mode, font pattern, warning lamp
Pattern, light illumination mode and charge mode, different patterns can be selected by button, also can by shake this multifunctional sound box come
Enable glo-stick pattern；Above-mentioned pattern has preset and has been stored in PCB main board (3), need to only directly invoke；
Glo-stick pattern is when user shakes, and LED lamp panel simulation glo-stick, sends milder light；
Alarm clock mode is will jingle bell to particular point in time；
Font pattern is to form " the font such as I LOVE YOU " and " SOS " by the LED lamp bead array in LED lamp panel；
Warning lamp pattern is when user is riding, and this multifunctional sound box is placed on bicycle rear, LED template die
Intend automobile tail light and send feux rouges, remind other traffic participants；
Light illumination mode be when ambient light deficiency, whole LED lamp beads in LED lamp bead array light, there is provided power compared with
High illumination light；
Charge mode is that can in emergency circumstances give charging of mobile devices.
Further, this multifunctional sound box also includes blue-tooth device, and the blue-tooth device is connected with PCB main board, realizes blue
The function of tooth audio amplifier.
Further, the button is provided with five, be respectively on select key, Pause key, lower select key, mode selecting key and electricity
Source key.
Brief description of the drawings
Fig. 1 is a kind of internal structure schematic diagram of multifunctional sound box of the present invention；
Fig. 2 is a kind of overall structure diagram of multifunctional sound box of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1 drain pan, 11 silica gel plugs, 12 lanyard holes, 13 locating pieces, 2 face-pieces, 3PCB mainboards, 31 buttons, 32DC OUT interfaces,
33DC IN interfaces, 34 silica gel catch, 35 grooves, 4 loudspeaker, 5LED lamp plates, 6 transparent panels, 7 display screens, 71 display eyeglasses, 8 batteries
Pressing plate, 9 batteries
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As depicted in figs. 1 and 2, Fig. 1 is a kind of internal structure schematic diagram of multifunctional sound box of the present invention, and Fig. 2 is the present invention
A kind of overall structure diagram of multifunctional sound box.A kind of multifunctional sound box, including drain pan 1, face-piece 2, PCB main board 3, loudspeaker 4
With LED lamp panel 5, the drain pan 1 is cuboid trough body structure, and LED lamp bead array, the face-piece are provided with the LED lamp panel 5
2 PCB main boards 3, loudspeaker 4 and LED lamp panel 5 are fixed and are encapsulated in the cell body of drain pan 1；Multiple apertures are offered on the face-piece 2,
The aperture is used for entrant sound and printing opacity；Specifically, the loudspeaker 4 are provided with two, are separately positioned on the both ends of drain pan 1；It is described
LED lamp bead array includes 26 LED lamp beads, and the power of each LED lamp bead is 0.3W, the general power of whole LED lamp bead array
5.2W, compared to the 3W for playing mill run, the light of this multifunctional sound box can reach illuminating effect；In addition, according to different works
Operation mode, control light corresponding LED lamp bead, can be achieved with glo-stick pattern, alarm clock mode, timing mode, font pattern, police
Show the lighting demand under lamp pattern, light illumination mode and charge mode.
Button 31 is additionally provided with the PCB main board 3, the side of the drain pan 1 is provided with and 31 corresponding through hole of button；
The button 31 uses silica gel push-button 31, and feel is more preferable；The button 31 is provided with five, be respectively on select key, Pause key, under
Select key, mode selecting key and power key.
The PCB main board 3 electrically connects with loudspeaker 4 and LED lamp panel 5 respectively, controls PCB main board 3 may be selected by button 31
Different mode of operations.
The invention mainly comprises PCB main board 3, loudspeaker 4 and LED lamp panel 5, controls loudspeaker 4 to realize by PCB main board 3
Basic music playing function, further, different mode of operations can also be selected by button 31, and then control PCB main board 3
Realize multiple functions, such as illumination functions and display specific font.
DC OUT interfaces 32 and DC IN interfaces 33 are additionally provided with the PCB main board 3, the side of the drain pan 1 is provided with
With 33 corresponding through hole of DC OUT interfaces 32 and DC IN interfaces；The DC OUT interfaces 32 use USB interface；Connect by DC IN
Mouth 33 can give this multifunctional sound box to charge, and provide electric energy for normal work, electrical power storage can also be got up, in case of emergency
Charging of mobile devices can be given.
The side of the drain pan 1 is provided with silica gel catch 34, and the silica gel catch 34 is arranged on DC OUT interfaces 32 and DC
Outside IN interfaces 33；The advantages of silica gel catch 34 after deformation with easily resiling, outside DC OUT interfaces 32 and DC IN interfaces 33
Silica gel catch 34 is set, the direct exposed of interface is avoided by simple structure, realizes dust-proof and protection effect.
Transparent panel 6 is additionally provided between the LED lamp panel 5 and face-piece 2；Because this multifunctional sound box is applied to outdoor field more
Scape, inevitable that rainy risk, by setting transparent panel 6 between LED lamp panel 5 and face-piece 2, it becomes possible to LED
Lamp plate 5 and external environment isolation are come, and realize water-proof function.
Display screen 7 is additionally provided with the PCB main board 3, the side of the drain pan 1 is provided with display eyeglass 71, described aobvious
Show that eyeglass 71 is arranged on outside display screen 7；Because this multifunctional sound box has a variety of different mode of operations, grasped by button 31
During work, specifying information can be shown by display screen 7；And show eyeglass 71 and then play a part of protecting display screen 7.
A kind of multifunctional sound box, in addition to battery plate 8 and battery 9, the battery plate 8 are arranged on PCB main board 3,
The battery 9 is fixedly installed between battery plate 8, PCB main board (3) and drain pan 1；Set battery plate 8, can preferably
Battery 9 is fixed in drain pan 1, avoids rocking for internal components, improves product reliability.
The bottom of drain pan 1 offers mounting hole, and the face-piece 2 is arranged on drain pan 1 by mounting hole and screw, described
Silica gel plug 11 is additionally provided with mounting hole；In this multifunctional sound box of horizontal, silica gel plug 11 has good antiskid function, prevents
Drop accidentally.
Lanyard hole 12 is additionally provided with the drain pan 1, is convenient for carrying.
Gyro sensor is additionally provided with the PCB main board 3, can perceive user by gyro sensor shakes this
Multifunctional sound box, realize glo-stick function.
Locating piece 13 is provided with the medial surface of the drain pan 1, is offered on the PCB main board 3 corresponding with locating piece 13
Groove 35, the locating piece 13 of the drain pan 1 and the groove 35 of PCB main board 3 are mutually matched, preferably to install the He of PCB main board 3
Drain pan 1, further avoid because internal components rock caused failure.
The mode of operation includes glo-stick pattern, alarm clock mode, timing mode, font pattern, warning lamp pattern, illumination
Pattern and charge mode, different patterns can be selected by button 31, can also be enabled by shaking this multifunctional sound box glimmering
Optical wand pattern；Above-mentioned pattern has preset and has been stored in PCB main board (3), need to only directly invoke；
Glo-stick pattern is when user shakes, and LED lamp panel 5 simulates glo-stick, sends milder light；Further also may be used
To show specific font when shaking this multifunctional sound box；
Alarm clock mode be to particular point in time will jingle bell, while have light flash and music regular movements；
Font pattern is to form " the font such as I LOVE YOU " and " SOS " by the LED lamp bead array in LED lamp panel 5；
Warning lamp pattern is that when user is riding or when automobile on the way casts anchor, this multifunctional sound box is placed on car
Afterwards, the simulated automotive taillight of LED lamp panel 5 sends feux rouges, reminds other traffic participants；
Light illumination mode be when ambient light deficiency, whole LED lamp beads in LED lamp bead array light, there is provided power compared with
High illumination light；
Charge mode is that can in emergency circumstances give charging of mobile devices.
In addition, when playing music by this multifunctional sound box, it can be changed with the pattern of ten several illusion-colour lamp beads, play sound
Light can flash according to rhythm when happy；
Preferably, a kind of multifunctional sound box, in addition to blue-tooth device, the blue-tooth device are connected with PCB main board 3, realize
The function of Baffle Box of Bluetooth.
Generally speaking, a kind of this multifunctional sound box includes following functions：
Acoustic function, song is played by bluetooth connection mobile phone, USB flash disk can also be inserted directly into and play song；
Alarm clock function, light flash while alarm clock sounds；
Timer function, after being transferred to timer function, this product is rocked when a timing is completed, two can be increased every time
The countdown of minute, suitable for being used during body-building；
Illumination functions, there are three kinds of light to be available for adjusting, respectively reach 2W, 5W and 8W illumination intensity；
Glo-stick function, under the pattern of glo-stick function, full white light, I LOVE YOU fonts and SOS words can be sent
Three kinds of glo-stick patterns of body；Wherein, under glo-stick pattern, I LOVE YOU fonts can be colored, each letter
It is made up of the light of different colours, and SOS fonts are then complete orange light compositions, available for crying for help；
Light filling function, seven kinds of light filling colors are provided with, color light filling can be selected certainly according to environment when user is in self-timer；
Gravity sensing function, can according to residing for this product direction, send according to direction flow light；
Illusion-colour light function, using 5050 illusion-colour lamp beads, the flow-type light of dazzling illusion-colour can be sent；
Ride alarm function, warning light is sent when using ride mode, white light flicker occur in both ends, and centre is orange
Illusion-colour light liquidity；
Alarm function, under alert mode, the blue blinking light of half red half is sent to prompt people；
Music regular movements function, enables music regular movements function when playing song, light can according to the size of sound it is strong and weak come
Change color；
Time function, this product carry time showing, can manual regulating time；
Under glo-stick pattern, I LOVE YOU fonts be it is colored, each font by different colours light group
Into,
Urgent charge function, when user plays mobile phone out of power out of doors, shifting of this product to mobile phone plane plate etc can be used
Dynamic equipment promptly charges.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
- A kind of 1. multifunctional sound box, it is characterised in that：Including drain pan (1), face-piece (2), PCB main board (3), loudspeaker (4) and LED Plate (5), the drain pan (1) are cuboid trough body structure, and LED lamp bead array, the face-piece are provided with the LED lamp panel (5) (2) fixation of PCB main board (3), loudspeaker (4) and LED lamp panel (5) is encapsulated in the cell body of drain pan (1)；Button (31) is provided with the face-piece (2), the PCB main board electrically connects with button (31)；The PCB main board (3) is electrically connected with loudspeaker (4) and LED lamp panel (5) respectively, and PCB main board (3) is controlled by button (31) Different mode of operations may be selected.
- A kind of 2. multifunctional sound box according to claim 1, it is characterised in that：Use is additionally provided with the PCB main board (3) In the DC OUT interfaces (32) and DC IN interfaces (33) of charging, the DC OUT interfaces (32) and DC IN interfaces (33) and PCB Mainboard (3) electrically connects.
- A kind of 3. multifunctional sound box according to claim 2, it is characterised in that：The side of the drain pan (1) is provided with silicon Glue catch (34), the silica gel catch (34) are arranged on DC OUT interfaces (32) and DC IN interfaces (33) outside.
- A kind of 4. multifunctional sound box according to claim 1, it is characterised in that：The LED lamp panel (5) and face-piece (2) it Between be additionally provided with transparent panel (6).
- A kind of 5. multifunctional sound box according to claim 1, it is characterised in that：It is additionally provided with the PCB main board (3) aobvious Display screen (7), the side of the drain pan (1) are provided with display eyeglass (71), and the display eyeglass (71) is arranged on display screen (7) Outside.
- A kind of 6. multifunctional sound box according to claim 1, it is characterised in that：Also include battery plate (8) and battery (9), the battery plate (8) is arranged on PCB main board (3), and the battery (9) is fixedly installed on battery plate (8), PCB master Between plate (3) and drain pan (1), the battery (9) electrically connects with PCB main board (3) and powered for PCB main board (3).
- A kind of 7. multifunctional sound box according to claim 1, it is characterised in that：Drain pan (1) bottom offers installation Hole, the face-piece (2) are arranged on drain pan (1) by mounting hole and screw, and silica gel plug (11) is additionally provided with the mounting hole.
- A kind of 8. multifunctional sound box according to claim 1, it is characterised in that：Lanyard is additionally provided with the drain pan (1) Hole (12).
- A kind of 9. multifunctional sound box according to claim 1, it is characterised in that：Top is additionally provided with the PCB main board (3) Spiral shell instrument sensor.
- 10. according to a kind of multifunctional sound box described in claim any one of 1-9, it is characterised in that：The inner side of the drain pan (1) Locating piece (13) is provided with face, groove (35) corresponding with locating piece (13), the PCB are offered on the PCB main board (3) Mainboard (3) is arranged on drain pan (1) by the corresponding grafting of locating piece (13) and groove (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710723145.8A CN107426645B (en) | 2017-08-22 | 2017-08-22 | Multifunctional sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710723145.8A CN107426645B (en) | 2017-08-22 | 2017-08-22 | Multifunctional sound box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107426645A true CN107426645A (en) | 2017-12-01 |
| CN107426645B CN107426645B (en) | 2024-02-23 |
Family
ID=60434281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710723145.8A Active CN107426645B (en) | 2017-08-22 | 2017-08-22 | Multifunctional sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107426645B (en) |
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| JP2002203401A (en) * | 2000-12-28 | 2002-07-19 | Microstone Corp | Light with motion sensing function |
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| CN205160726U (en) * | 2015-11-05 | 2016-04-13 | 王家发 | Bluetooth player |
| CN205320227U (en) * | 2016-01-30 | 2016-06-15 | 侯永国 | Portable sound box |
| CN206260077U (en) * | 2016-12-12 | 2017-06-16 | 惠州市捷美斯科技有限公司 | A kind of audio amplifier |
| CN207039869U (en) * | 2017-08-22 | 2018-02-23 | 深圳闪闪亮亮科技有限公司 | A kind of multifunctional sound box |
-
2017
- 2017-08-22 CN CN201710723145.8A patent/CN107426645B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11252671A (en) * | 1998-03-04 | 1999-09-17 | Victor Co Of Japan Ltd | Illumination display in audio equipment |
| US6404409B1 (en) * | 1999-02-12 | 2002-06-11 | Dennis J. Solomon | Visual special effects display device |
| JP2002203401A (en) * | 2000-12-28 | 2002-07-19 | Microstone Corp | Light with motion sensing function |
| CN203840483U (en) * | 2014-03-31 | 2014-09-17 | 张斌 | Colorful light sound box structure |
| CN204099923U (en) * | 2014-09-11 | 2015-01-14 | 诠亚科技股份有限公司 | The glo-stick of tool sound result of broadcast |
| CN204358593U (en) * | 2014-11-24 | 2015-05-27 | 东莞长发光电科技有限公司 | A kind of Multifunctional LED extremely dazzles lamp |
| CN204392532U (en) * | 2015-01-28 | 2015-06-10 | 江西科技学院 | A kind of multifunction blue tooth magic square audio amplifier |
| CN205160726U (en) * | 2015-11-05 | 2016-04-13 | 王家发 | Bluetooth player |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107426645B (en) | 2024-02-23 |
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