WO2017075951A1 - Headphone having flickering leds - Google Patents

Headphone having flickering leds Download PDF

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Publication number
WO2017075951A1
WO2017075951A1 PCT/CN2016/080887 CN2016080887W WO2017075951A1 WO 2017075951 A1 WO2017075951 A1 WO 2017075951A1 CN 2016080887 W CN2016080887 W CN 2016080887W WO 2017075951 A1 WO2017075951 A1 WO 2017075951A1
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main control
control board
led
charging
electrically connected
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Chinese (zh)
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刘向丽
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers

Definitions

  • the utility model relates to an LED flashing earphone, and the LED flashing earphone can flash.
  • the technical problem to be solved by the utility model is to provide an LED flashing light earphone, which is separated from the main control part by the LED flashing light head charging body, small in size, small andaki, and convenient to carry.
  • the utility model relates to an LED flashing earphone, which comprises: a four-section plug, a main control part with a built-in main control board, a lamp strip with an LED, a speaker and a battery; a voice input electrical connection part corresponding to the microphone and the four-section plug
  • the electrical connection of the speaker and the four-section plug is electrically connected; the four-section plug is electrically connected to the main control board; the light strip is electrically connected to the main control board; the battery is electrically connected to the main control board; when charging, the external power supply is four
  • the voice input electrical connector on the plug inputs current to the main control board, and the main control board charges the battery; when listening to music or answering a call, the sound signal is sounded from the four-section plug to the speaker, and the main control board chip pairs the sound signal.
  • the LED works according to the command, and the sound signal LED emits light, no sound signal is extinguished, and the sound signal has a strong light-emitting time, and the sound signal has a short light-emitting time. It becomes a flickering effect that LED illumination changes with sound changes.
  • the utility model can further solve the problem by taking the following improvement measures:
  • the main control board is electrically connected with red light and green light.
  • the main control chip samples, calculates and controls the charging current and voltage.
  • the red light on the main control board lights up when charging, and the green light is on when full.
  • the lamp strip comprises a PCB base material, and the LED is disposed on the PCB base material.
  • the light strip is located inside the line body, and the light of the LED is emitted outside the line.
  • the wire body comprises a PVC hose layer and an outer layer; the outer layer is located in the PVC hose layer, and the lamp strip is located between the PVC hose layer and the outer layer.
  • the charging base body further includes a USB plug, a charging socket for electrically connecting with the four-section plug, and the power input end of the USB plug is electrically connected to the corresponding connecting end of the charging base for giving four
  • the voice input electrical connector of the plug is input with charging current.
  • the main control part is provided with a button for controlling the answering call.
  • the main control part is provided with a button for controlling listening to music.
  • the main control part is provided with a button for controlling the blinking of the LED.
  • the LED flashing earphone of the utility model is separated from the main control part by the charging seat body, and has small volume, small and extraordinar, and convenient to carry.
  • the data line for charging is cancelled, which is simple, especially the headphone cable, which is used for both listening to music and charging, and is used in both lines.
  • FIG. 1 is a schematic view of a specific embodiment 1.
  • FIG. 2 is a schematic cross-sectional view of a wire body.
  • Figure 3 is a block diagram showing the electrical principle of a specific embodiment 1.
  • an LED flashing earphone comprises four plugs, a main control part with a main control board, a light strip 3 with an LED, and a speaker 4.
  • the battery the microphone (MIC) is electrically connected with the voice input electrical connector corresponding to the four-section plug 1 (four-section plug 3.5mm), the speaker 4 is electrically connected with the electrical connector corresponding to the four-section plug 1; the four-section plug 1 and the main
  • the control board is electrically connected.
  • the lamp strip 3 is electrically connected to the main control board; the battery is electrically connected to the main control board.
  • the external power supply When charging, the external power supply inputs current from the voice input electrical connector on the four-section plug to the main control board, and the main control board charges the battery. That is, the charging is performed by using the four-section plug ground wire and the voice input electrical connector (fourth section).
  • the sound signal When listening to music or answering a call, the sound signal is sent from the four-section plug to the speaker. At the same time, the chip of the main control board samples, calculates, and issues the sound signal.
  • the LED works according to the command, and the sound signal LED emits light without sound. The signal is extinguished, and the sound signal is strongly illuminated for a long time, and the weak signal of the sound signal is short, which forms a flickering effect of the LED illumination changing with the sound.
  • the main control board is electrically connected with red light and green light.
  • the main control chip samples, calculates and controls the charging current and voltage.
  • the red light on the main control board lights up when charging, and the green light is bright when full. .
  • the lamp strip 3 comprises a PCB-based material, and the LED is disposed on the PCB-based material.
  • the LED is disposed on the PCB-based material.
  • the light strip 3 is located inside the body of the wire, and the LED light is emitted outside the line.
  • the wire body comprises a PVC hose layer 5 and an outer layer 6; the outer layer 6 is located in the PVC hose layer 5, and the lamp strip 3 is located between the PVC hose layer 5 and the outer layer 6. Also included are conductors 10 and the like.
  • the charging base 7 is further provided with a USB plug 8 and a charging socket 9 for electrically connecting with the four-section plug 1.
  • the power input end of the USB plug 8 passes through the charging seat.
  • the electrical connection of the connection is used to input a charging current to the voice input electrical connector of the four-section plug 1.
  • a further improvement is that the main control portion 2 is provided with a button for controlling the answering call. Press when the phone comes The key is to answer the call.
  • a further improvement is that the main control portion 2 is provided with a button for controlling the blinking of the LED.
  • the headphone plug can be inserted into the 3.5 headphone jack with music output to listen to music, press once Light button, LED flashes with music, press again Light button, LED is off.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)

Abstract

A headphone having flickering LEDs comprises a four-contact jack, a main control portion having a built-in main control board, a lamp strip having LEDs, a speaker, and a battery. A microphone is electrically connected to a corresponding voice input electrical contact of the four-contact jack, and the speaker is electrically connected to a corresponding electrical contact of the four-contact jack. The four-contact jack is electrically connected to the main control board, the lamp strip is electrically connected to the main control board, and the battery is electrically connected to the main control board. During charging, an external power supply inputs an electric current to the main control board via the voice input electrical contact of the four-contact audio jack, and the main control board charges the battery. During music playing or a call, a voice signal propagates from the four-contact jack to the speaker to generate sound. In the headphone having flickering LEDs, the present invention removes a charging socket from the main control portion, thus having the advantages of being small-sized, exquisite and portable, and also eliminates a need for a charging data cable by using one cord to perform two functions. In addition, the LED is driven by a low voltage (3.7 V) and a small current, thereby reducing the charging frequency and increasing battery life. Moreover, a highly flexible PCB is employed to increase the service life of the headphone.

Description

LED闪灯耳机LED flashing earphone

本申请要求2015年11月02日提交的中国专利申请2015208737745号的优先权利益，在此通过引用将该优先权文件的全部内容合并至本文中。The present application claims priority to Chinese Patent Application No. 2015 208 737 745, filed on Nov. 2, 2015, the entire content of which is hereby incorporated by reference.

技术领域Technical field

本实用新型涉及的是一种LED闪灯耳机，该种LED闪灯耳机可以闪光。The utility model relates to an LED flashing earphone, and the LED flashing earphone can flash.

背景技术Background technique

目前市场上流行的耳机,绝大多数不带发光线材,所以这些产品缺乏美感,千篇一律。Most of the earphones currently on the market do not have luminous wires, so these products lack aesthetics and are the same.

有少量EL冷光耳机,但是因为EL冷光线需要150-200V的高压驱动,所以如果电线有破损接触到人体会造成惊吓或电伤；EL冷光耳机因充电座与主控部分做成一体,所以体积宠大,很难做到小巧精致、美观,同时因为EL线径大,所以生产出来耳机线粗,弯曲折叠难，不方便携带。There are a small number of EL cold-light headphones, but because EL cold light requires 150-200V high-voltage drive, if the wire is damaged, it will cause fright or electric injury if it touches the human body; EL cold-light earphone is integrated with the main control part, so the volume Pets are big, it is difficult to be small and exquisite, beautiful, and because the EL wire diameter is large, the earphone cable is thick, and it is difficult to carry and bend.

实用新型内容Utility model content

本实用新型需要解决的技术问题是提供一种LED闪灯耳机，该种LED闪灯耳机充电座体与主控部分分离，体积小，小巧精致，方便携带。The technical problem to be solved by the utility model is to provide an LED flashing light earphone, which is separated from the main control part by the LED flashing light head charging body, small in size, small and exquisite, and convenient to carry.

本实用新型可以采取如下技术方案:The utility model can adopt the following technical solutions:

一种LED闪灯耳机，其特征是：包括四节插头、内置有主控板的主控部分、设有LED的灯带、喇叭、电池；话筒与四节插头对应的语音输入电连接件电连接，喇叭与四节插头对应的电连接件电连接；四节插头与主控板电连接；灯带与主控板电连接；电池与主控板电连接；充电时，外置电源由四节插头上的语音输入电连接件向主控板输入电流，主控板对电池充电；听音乐或接听电话时，声音信号从四节插头而到喇叭发出声音，同时主控板芯片对声音信号进行采样、运算、发出指令，LED根据指令进行工作，有声音信号LED发光，没有声音信号熄灭，而且声音信号强发光时间长，声音信号弱发光时间短，就形 成了LED发光随声音变化而变化的闪烁效果。The utility model relates to an LED flashing earphone, which comprises: a four-section plug, a main control part with a built-in main control board, a lamp strip with an LED, a speaker and a battery; a voice input electrical connection part corresponding to the microphone and the four-section plug The electrical connection of the speaker and the four-section plug is electrically connected; the four-section plug is electrically connected to the main control board; the light strip is electrically connected to the main control board; the battery is electrically connected to the main control board; when charging, the external power supply is four The voice input electrical connector on the plug inputs current to the main control board, and the main control board charges the battery; when listening to music or answering a call, the sound signal is sounded from the four-section plug to the speaker, and the main control board chip pairs the sound signal. Sampling, computing, and issuing commands, the LED works according to the command, and the sound signal LED emits light, no sound signal is extinguished, and the sound signal has a strong light-emitting time, and the sound signal has a short light-emitting time. It becomes a flickering effect that LED illumination changes with sound changes.

本实用新型解决问题还可以进一步采取以下改进措施：The utility model can further solve the problem by taking the following improvement measures:

其中，主控板电连接有红灯及绿灯，充电时，主控芯片对充电电流和电压进行采样、运算和控制，主控板上的红灯在充电时亮，充满时绿灯亮。Among them, the main control board is electrically connected with red light and green light. When charging, the main control chip samples, calculates and controls the charging current and voltage. The red light on the main control board lights up when charging, and the green light is on when full.

其中，灯带包括PCB基材料，所述LED设于PCB基材料上。Wherein, the lamp strip comprises a PCB base material, and the LED is disposed on the PCB base material.

其中，灯带位于线体内，所述LED的灯光射出线体外。Wherein, the light strip is located inside the line body, and the light of the LED is emitted outside the line.

其中，所述线体包括PVC软管层、外被层；外被层位于PVC软管层内，灯带位于PVC软管层、外被层之间。Wherein, the wire body comprises a PVC hose layer and an outer layer; the outer layer is located in the PVC hose layer, and the lamp strip is located between the PVC hose layer and the outer layer.

其中，还包括充电座体，充电座体设有USB插头、用于与所述四节插头电连接的充电插座，USB插头的电源输入端通过与充电座的对应连接端电连接用于给四节插头的语音输入电连接件输入充电电流。The charging base body further includes a USB plug, a charging socket for electrically connecting with the four-section plug, and the power input end of the USB plug is electrically connected to the corresponding connecting end of the charging base for giving four The voice input electrical connector of the plug is input with charging current.

其中，主控部分上设有用于控制接听电话的按键。The main control part is provided with a button for controlling the answering call.

其中，主控部分上设有用于控制听音乐的按键。Among them, the main control part is provided with a button for controlling listening to music.

其中，主控部分上设有用于控制LED闪烁的按键。Among them, the main control part is provided with a button for controlling the blinking of the LED.

上述技术方案具有这样的技术效果:The above technical solution has such technical effects:

1、本实用新型LED闪灯耳机，充电座体与主控部分分离，体积小，小巧精致，方便携带。取消了用来充电的数据线,简单,特别是耳机线,既作听音乐用,也作充电用,一线两用。1. The LED flashing earphone of the utility model is separated from the main control part by the charging seat body, and has small volume, small and exquisite, and convenient to carry. The data line for charging is cancelled, which is simple, especially the headphone cable, which is used for both listening to music and charging, and is used in both lines.

2.由于采用低电压(3.7V)小电流驱动LED,既美观又节约了电源,减少充电频率,延长了使用时间。2. Due to the low voltage (3.7V) low current driving LED, it is beautiful and saves power, reduces charging frequency and prolongs the use time.

3.运用柔性好的软PCB,延长耳机的使用寿命。3. Use a flexible flexible PCB to extend the life of the headset.

附图说明DRAWINGS

图1是具体实施例1的示意图。1 is a schematic view of a specific embodiment 1.

图2是线体截面示意图。2 is a schematic cross-sectional view of a wire body.

图3是具体实施例1电原理方框示意图。Figure 3 is a block diagram showing the electrical principle of a specific embodiment 1.

具体实施方式 detailed description

下面结合具体实施例对本实用新型进行具体描述。The present invention will be specifically described below in conjunction with specific embodiments.

实施例1：如图1、图2、图3所示，一种LED闪灯耳机，包括四节插头1、内置有主控板的主控部分2、设有LED的灯带3、喇叭4、电池；话筒(MIC)与四节插头1(四节插头3.5mm)对应的语音输入电连接件电连接，喇叭4与四节插头1对应的电连接件电连接；四节插头1与主控板电连接。灯带3与主控板电连接；电池与主控板电连接。Embodiment 1: As shown in FIG. 1 , FIG. 2 and FIG. 3 , an LED flashing earphone comprises four plugs, a main control part with a main control board, a light strip 3 with an LED, and a speaker 4. , the battery; the microphone (MIC) is electrically connected with the voice input electrical connector corresponding to the four-section plug 1 (four-section plug 3.5mm), the speaker 4 is electrically connected with the electrical connector corresponding to the four-section plug 1; the four-section plug 1 and the main The control board is electrically connected. The lamp strip 3 is electrically connected to the main control board; the battery is electrically connected to the main control board.

充电时，外置电源由四节插头上的语音输入电连接件向主控板输入电流，主控板对电池充电。即利用四节插头上地线及语音输入电连接件(第四节)进行充电。When charging, the external power supply inputs current from the voice input electrical connector on the four-section plug to the main control board, and the main control board charges the battery. That is, the charging is performed by using the four-section plug ground wire and the voice input electrical connector (fourth section).

听音乐或接听电话时，声音信号从四节插头而到喇叭发出声音，同时主控板的芯片对声音信号进行采样、运算、发出指令，LED根据指令进行工作，有声音信号LED发光，没有声音信号熄灭，而且声音信号强发光时间长，声音信号弱发光时间短，就形成了LED发光随声音变化而变化的闪烁效果。When listening to music or answering a call, the sound signal is sent from the four-section plug to the speaker. At the same time, the chip of the main control board samples, calculates, and issues the sound signal. The LED works according to the command, and the sound signal LED emits light without sound. The signal is extinguished, and the sound signal is strongly illuminated for a long time, and the weak signal of the sound signal is short, which forms a flickering effect of the LED illumination changing with the sound.

进一步的改进为：主控板电连接有红灯及绿灯，充电时，主控芯片对充电电流和电压进行采样、运算和控制，主控板上的红灯在充电时亮，充满时绿灯亮。The further improvement is: the main control board is electrically connected with red light and green light. When charging, the main control chip samples, calculates and controls the charging current and voltage. The red light on the main control board lights up when charging, and the green light is bright when full. .

进一步的改进为：如图2，灯带3包括PCB基材料，所述LED设于PCB基材料上。运用柔性好的软PCB,延长耳机的使用寿命。A further improvement is as shown in FIG. 2, the lamp strip 3 comprises a PCB-based material, and the LED is disposed on the PCB-based material. Use a flexible flexible PCB to extend the life of the headset.

灯带3位于线体内，所述LED灯光射出线体外。The light strip 3 is located inside the body of the wire, and the LED light is emitted outside the line.

所述线体包括PVC软管层5、外被层6；外被层6位于PVC软管层5内，灯带3位于PVC软管层5、外被层6之间。还包括导体10等。The wire body comprises a PVC hose layer 5 and an outer layer 6; the outer layer 6 is located in the PVC hose layer 5, and the lamp strip 3 is located between the PVC hose layer 5 and the outer layer 6. Also included are conductors 10 and the like.

进一步的改进为：还包括充电座体7，充电座体7设有USB插头8、用于与所述四节插头1电连接的充电插座9，USB插头8的电源输入端通过充电座的对应连接端电连接用于给四节插头1的语音输入电连接件输入充电电流。A further improvement is as follows: the charging base 7 is further provided with a USB plug 8 and a charging socket 9 for electrically connecting with the four-section plug 1. The power input end of the USB plug 8 passes through the charging seat. The electrical connection of the connection is used to input a charging current to the voice input electrical connector of the four-section plug 1.

将四节插头插入充电座体，再将充电座体插入电脑或充电器，即开始充电，此时主控板上的红灯亮，当充满电时主控板的灯由红灯转到绿灯亮。Insert the four-section plug into the charging base, then insert the charging base into the computer or charger, and start charging. At this time, the red light on the main control board is on. When the battery is fully charged, the main control board's light turns from red to green. bright.

进一步的改进为：主控部分2上设有用于控制接听电话的按键。 电话来时按下

Figure PCTCN2016080887-appb-000001
键即接电话。A further improvement is that the main control portion 2 is provided with a button for controlling the answering call. Press when the phone comes
Figure PCTCN2016080887-appb-000001
The key is to answer the call.

进一步的改进为：主控部分2上设有用于控制LED闪烁的按键。A further improvement is that the main control portion 2 is provided with a button for controlling the blinking of the LED.

使用时A：接听电话：电话来时按下

Figure PCTCN2016080887-appb-000002
键即接电话，如按下
Figure PCTCN2016080887-appb-000003
灯键LED随电话声音闪烁，如不想LED闪烁则再一次按
Figure PCTCN2016080887-appb-000004
键。When using A: Answer the call: Press when the call comes
Figure PCTCN2016080887-appb-000002
The key is to answer the call, such as pressing
Figure PCTCN2016080887-appb-000003
The light button LED flashes with the phone sound. If you don't want the LED to flash, press it again.
Figure PCTCN2016080887-appb-000004
key.

B：听音乐：耳机插头插入有音乐输出的3.5耳机插座即可听音乐,按一次

Figure PCTCN2016080887-appb-000005
灯键,LED随音乐闪烁,再按一次
Figure PCTCN2016080887-appb-000006
灯键,LED熄灭。B: Listen to music: the headphone plug can be inserted into the 3.5 headphone jack with music output to listen to music, press once
Figure PCTCN2016080887-appb-000005
Light button, LED flashes with music, press again
Figure PCTCN2016080887-appb-000006
Light button, LED is off.

以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型的保护范围之内。 The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the present invention. The scope of protection of utility models.

Claims (9)

一种LED闪灯耳机，其特征是：包括四节插头、内置有主控板的主控部分、设有LED的灯带、喇叭、电池；话筒与四节插头对应的语音输入电连接件电连接，喇叭与四节插头对应的电连接件电连接；四节插头与主控板电连接；灯带与主控板电连接；电池与主控板电连接；充电时，外置电源由四节插头上的语音输入电连接件向主控板输入电流，主控板对电池充电；听音乐或接听电话时，声音信号从四节插头而到喇叭发出声音，同时主控板芯片对声音信号进行采样、运算、发出指令，LED根据指令进行工作，有声音信号LED发光，没有声音信号熄灭，而且声音信号强发光时间长，声音信号弱发光时间短，就形成了LED发光随声音变化而变化的闪烁效果。The utility model relates to an LED flashing earphone, which comprises: a four-section plug, a main control part with a built-in main control board, a lamp strip with an LED, a speaker and a battery; a voice input electrical connection part corresponding to the microphone and the four-section plug The electrical connection of the speaker and the four-section plug is electrically connected; the four-section plug is electrically connected to the main control board; the light strip is electrically connected to the main control board; the battery is electrically connected to the main control board; when charging, the external power supply is four The voice input electrical connector on the plug inputs current to the main control board, and the main control board charges the battery; when listening to music or answering a call, the sound signal is sounded from the four-section plug to the speaker, and the main control board chip pairs the sound signal. The sampling, calculation, and command are issued, and the LED works according to the instruction. The sound signal LED emits light, no sound signal is extinguished, and the sound signal has a strong light-emitting time, and the sound signal has a weak light-emitting time, and the LED light changes with the sound change. The flashing effect. 根据权利要求1所述的LED闪灯耳机，其特征是：主控板电连接有红灯及绿灯，充电时，主控芯片对充电电流和电压进行采样、运算和控制，主控板上的红灯在充电时亮，充满时绿灯亮。The LED flashing earphone according to claim 1, wherein the main control board is electrically connected with a red light and a green light. When charging, the main control chip samples, calculates, and controls the charging current and voltage, and the main control board The red light is on when charging, and the green light is on when full. 根据权利要求1所述的LED闪灯耳机，其特征是：灯带包括PCB基材料，所述LED设于PCB基材料上。The LED flashing earphone according to claim 1, wherein the lamp strip comprises a PCB-based material, and the LED is disposed on the PCB-based material. 根据权利要求1所述的LED闪灯耳机，其特征是：灯带位于线体内，LED的灯光射出线体外。The LED flashing earphone according to claim 1, wherein the lamp strip is located inside the wire body, and the light of the LED is emitted outside the wire. 根据权利要求4所述的LED闪灯耳机，其特征是：所述线体包括PVC软管层、外被层；外被层位于PVC软管层内，灯带位于PVC软管层、外被层之间。The LED flashing earphone according to claim 4, wherein the wire body comprises a PVC hose layer and an outer layer; the outer layer is located in the PVC hose layer, and the lamp strip is located on the PVC hose layer and the outer layer. Between the layers. 根据权利要求1所述的LED闪灯耳机，其特征是：还包括充电座体，充电座体设有USB插头、用于与所述四节插头电连接的充电插座，USB插头的电源输入端通过与充电座的对应连接端电连接用于给四节插头的语音输入电连接件输入充电电流。The LED flashing earphone according to claim 1, further comprising a charging base, wherein the charging base is provided with a USB plug, a charging socket for electrically connecting with the four-section plug, and a power input end of the USB plug. The charging current is input to the voice input electrical connector of the four-section plug by electrically connecting to the corresponding connection end of the charging stand. 根据权利要求1所述的LED闪灯耳机，其特征是：主控部分上设有用于控制接听电话的按键。The LED flashing earphone according to claim 1, wherein the main control portion is provided with a button for controlling the answering call. 根据权利要求1所述的LED闪灯耳机，其特征是：主控部分上设有用于控制听音乐的按键。 The LED flashing earphone according to claim 1, wherein the main control portion is provided with a button for controlling listening to music. 根据权利要求1所述的LED闪灯耳机，其特征是：主控部分上设有用于控制LED闪烁的按键。 The LED flashing earphone according to claim 1, wherein the main control portion is provided with a button for controlling the blinking of the LED.
PCT/CN2016/080887 2015-11-02 2016-05-03 Headphone having flickering leds Ceased WO2017075951A1 (en)

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