True wireless stereo earphone assembly with TES treatment function

Abstract

The present disclosure relates to a true wireless stereo (TWS) earphone assembly having a TES treatment function.

Description

Technical Field

[0001] This disclosure relates to a true wireless stereo (TWS) earphone assembly with transcranial electrical stimulation (TES) therapy functionality. More specifically, this disclosure provides a TWS earphone assembly and improvements thereto, the TWS earphone assembly being configured not only to listen based on the transmission of acoustic signals, but also to perform electro-TES therapy functionality in a TWS earphone having a pair of electrically separated left and right earphones, according to the user's selection, and to transmit signals according to the Bluetooth protocol. Background Technology

[0002] In recent years, TWS earphones, which transmit signals according to the Bluetooth protocol, have become the standard audio listening device.

[0003] TWS earbuds are equipped with a pair of left and right earbuds as electrically separate sound units, and do not require a separate electrical connection between the earbuds. They also use the Bluetooth communication protocol to receive and play sound from audio devices.

[0004] This disclosure aims to provide further improvements to TWS earphones that can selectively perform TES therapy functions.

[0005] (1) From the perspective of mental health, problems such as insomnia, depression, ADHD, neurasthenia, lack of concentration, and fatigue are becoming serious problems faced by modern people. Especially in Russia and Northern Europe, where the winters are long, there have been many efforts and attempts to improve the symptoms of mental health conditions caused by climate by applying electrical or magnetic stimulation to the human body.

[0006] Recently, the treatment technique using "transcranial micro-electrical stimulation" or "transcranial magnetic stimulation" (TMS) or "transcranial electrical stimulation" (TES) has been theoretically and experimentally proven to be very effective through numerous papers and clinical trials, and TMS and TES stimulation devices have been widely adopted in many domestic psychiatric hospitals and adolescent mental health hospitals.

[0007] (2) In particular, TES treatment has been actively introduced and its distribution is rapidly expanding due to its non-pharmacological, non-invasive, non-addictive nature and extremely low risk of medical accidents.

[0008] (3) Typically, TES or TMS devices used to treat mental health pathologies are installed in a chair where the patient sits and receives treatment. TES or TMS devices are equipped as a single device with multiple electrode attachment pads, electrical stimulation circuitry and fine adjustment panels, making them very expensive and only available in medium to large hospitals.

[0009] Taking these points into consideration, the inventors of this disclosure believe that TES therapeutic functions can be applied to headphones, headsets, etc., and have developed many suitable technologies for this purpose.

[0010] In particular, Korean Patent No. 2194226 (titled "Bone Conduction Device with TES Therapy Function"), under the name of the assignee of this application, discloses a technology for providing TES therapy function to headphones and headsets and distributing them to the public in an easily portable form.

[0011] The technical concept of applying the prior art function to TWS earphones is disclosed in Chinese Patent Application No. 202311636508.6 (titled “TWS Earphone Assembly with TES Therapy Function”), filed on December 26, 2023, in the name of the assignee of this application.

[0012] In the aforementioned prior art application, a link cable is provided for transmitting TES signals through the human body to a pair of left and right earphones, wherein the link cable is connected when performing TES therapy function and removed from the earphones when entering sound listening mode, thereby enabling selective provision of TES therapy function.

[0013] The configuration of the existing application is very easy and convenient to use. However, since the connection terminal between the link cable and the earphone only has the function of transmitting TES signals, a pair of separate contact terminals are required in the earphone housing for charging in order to charge the earphone unit itself.

[0014] In addition, from a design perspective, there is an issue that the size of both earphones may increase because the TES signal generator is configured on the receiving circuit board of either the left or right earphone, and the right and left earphones must be the same size.

[0015] Therefore, not only did the size of the headphones become larger, but the circuit boards used for operation, the terminal pins used for charging, and the wiring or board contact circuits used for the connection between these components also needed to be completed within a very narrow space in the headphone body. This complicated the configuration, increased manufacturing costs, and also increased the risk of failure due to repeated use by users.

[0016] [Existing Technical Documents]

[0017] [Patent Literature]

[0018] (Patent Document 0001) Korean Patent No. 2194266 (December 16, 2020)

[0019] (Patent Document 0002) U.S. Patent No. 9,686,603 (June 20, 2017)

[0020] (Patent Document 0003) U.S. Patent Application Publication No. 2009 / 0185699 (July 23, 2009)

[0021] (Patent Document 0004) U.S. Patent Application Publication No. 2015 / 0382115 (December 31, 2015)

[0022] (Patent Document 0005) U.S. Patent Application Publication No. 2017 / 0368329 (December 28, 2017) Summary of the Invention

[0023] Therefore, the circuit configuration requires a compact and versatile design for the headphone housing.

[0024] In addition, there is a need for a TWS earphone that can function as both a terminal for transmitting TES signals to the human body and a charging terminal for charging, and can perform the function of a terminal for electrical connection of the earphone, thereby simplifying the overall configuration, reducing production costs, and minimizing wear and failure caused by frequent terminal contact.

[0025] To aid in understanding this invention, please refer to... Figure 9 and Figure 10 The TWS earphone assembly with TES therapeutic function disclosed in the aforementioned patents and patent applications is described.

[0026] like Figure 9 and Figure 10 As shown, the circuitry housed in each housing H2 and H2' of a pair of left earphones LE2 and right earphones RE2 includes a Bluetooth communication module 210, a memory 215, a decoder 220, a digital-to-analog converter 225, an audio amplifier 230, a speaker 241 or 242, and a controller 290 operated via a user LS interface 280.

[0027] In addition to the aforementioned sound data receiving and playback circuitry, one of the circuits housed in the housings H2 and H2' of the pair of earphones RE2 and LE2 also includes: a frequency generator 250, which is signal-connected to a controller 290 operated and controlled by a user LS interface 280 and generates a low-frequency signal to achieve the TES therapy function; and a TES signal amplifier 260, which amplifies the generated low-frequency signal.

[0028] The TES signal amplifier 260 allows the user LS to change the amplification level through the user LS interface 280, and the frequency generator can be configured as a separate circuit unit as described above, but the controller 290 can directly generate low-frequency signals.

[0029] The circuitry housed in each housing H2 and H2' of a pair of left earphones LE2 and right earphones RE2 includes a Bluetooth communication module 210, a memory 215, a decoder 220, a digital-to-analog converter 225, an audio amplifier 230, a speaker 241 or 242, and a controller 290 operated via a user LS interface 280.

[0030] Earphones RE2 and LE2 are each equipped with female connectors FC2 and FC2', and a link cable LC1 is provided at both ends for electrical connection and selective connection of a pair of female connectors FC2 and FC2'. Therefore, by connecting and disconnecting the link cable LC1, the transmission of TES signals to a pair of left earphones LE2 and right earphones RE2 is allowed or blocked.

[0031] In the above configuration, the setup is quite complex because separate electrode terminal pins are required to charge the batteries (not shown) of each of the earphones RE2 and LE2. Furthermore, a frequency generator 250, signal-connected to the TES generation signal controller 290, and a TES signal amplifier 260, which amplifies the generated low-frequency signal, are integrated into an integrated circuit and configured in either the left or right earphone. The intensity of the TES signal preferred by the user LS who wants to receive TES therapy is controlled via the operation of the user LS interface 280, which is connected to the controller 290. Therefore, when the user LS wants to adjust the intensity of the TES signal while listening to relaxation sounds, the volume operation of the user LS interface 280 overlaps with the operating mode, making it possible that control of the TES signal intensity is impossible or only permitted in a limited way.

[0032] In view of the above problems, this disclosure aims to provide a TWS component capable of selectively performing TES treatment functions and an improved configuration in which the entire circuit is improved, the terminal connection configuration for charging the earphone body battery is unified, and problems such as separate charging, wiring and amplification of terminal pins for the earphone body are eliminated.

[0033] In view of the foregoing, a TWS earphone assembly includes: an electrode M for electrically connecting to the skin of a user's ear on the outer surface of the ear unit I of each of a pair of electrically separated left earphones LE and right earphones RE; circuitry housed in each of the earphones RE and LE, and having a Bluetooth communication module 10, a memory 15, a decoder 20, a D / A converter 25, an audio amplifier 30, a speaker 40, and a controller 90 controlled via a user LS interface 80; and a charging stand R, whose terminals are connected to the terminals of the earphones RE and LE to enable charging of the earphones RE and LE.

[0034] The TWS earphone assembly also includes: a variable DC / DC converter 100 disposed in a first circuit C1, which is a separation circuit for one of the pair of separate left earphones LE and RE, and the variable DC / DC converter is connected to a controller 90; a TES signal generator 110 that generates a low-frequency signal for therapeutic purposes; and a variable amplifier 120 configured to amplify the low-frequency signal, wherein the TES signal generator and the variable amplifier are disposed in a second circuit C2, which is the other of the pair of separate right earphones and left earphones, and the TES signal generator and the variable amplifier are connected to the controller 90; and a link cable LC that is selectively attached to / detached from the terminals of the pair of left earphones LE and RE to electrically connect or disconnect the earphones RE and LE.

[0035] The TWS earphone assembly is configured to selectively perform, individually or simultaneously, a sound playback function and a TES therapy function as TWS earphones. The sound playback function is performed when a pair of left earphones (LE) and right earphones (RE) are used with the link cable (LC) disconnected from the pair of left earphones (LE) and right earphones (RE). The TES therapy function is performed by allowing low-frequency signals to flow through the user's body (LS) between the electrodes (M) of the earphones (RE) and (LE) when the terminals of the pair of earphones (RE, LE) are in contact with the terminals of the link cable (LC).

[0036] This disclosure can be easily applied to TWS earphones, enabling users (LS) to easily and selectively use the TES therapy function, thereby enjoying sound listening and receiving TES therapy.

[0037] The TWS earphone assembly with TES therapeutic function disclosed herein provides an earphone with a terminal connection configuration that allows the terminal connection of the charging holder and the terminal connection of the link cable to be performed simultaneously, and provides improved circuitry for controlling such connections, thereby providing ease of product configuration and operational reliability.

[0038] It also provides additional housing space for headphones, thereby reducing the loss of the link cable. Attached Figure Description

[0039] The above and other aspects, features and advantages of this disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0040] Figure 1 This is an external perspective view showing only a pair of left and right earpieces of a TWS earphone assembly with TES therapeutic function according to the present disclosure;

[0041] Figure 2This is an exemplary external perspective view illustrating the configuration and use of the TWS earphone components and charging stand;

[0042] Figure 3 This is an exemplary external perspective view showing the configuration and use of the charging stand only in the TWS earphone assembly;

[0043] Figure 4 This is a block diagram of the entire circuit configuration of the TWS earphone component;

[0044] Figure 5 This is an illustrative diagram showing the wiring relationship of the link cables used to connect the terminals for TES treatment;

[0045] Figure 6 This is an explanatory diagram showing the wiring relationship between a pair of terminals of the TWS earphone assembly and the terminals of the charging stand when the earphone is charging.

[0046] Figure 7 This is an illustrative diagram showing the voltage intensity control of the TES signal when using the TES therapy function of the headphone assembly;

[0047] Figure 8 This is an exemplary circuit configuration diagram of a TWS earphone component with TES therapeutic function according to the present disclosure, in which the circuit portion is actually configured.

[0048] Figure 9 This is an external perspective view of a single TWS earphone assembly with TES therapeutic function, illustrating an embodiment of the inventor's prior art; and

[0049] Figure 10 yes Figure 9 The circuit configuration diagram of the implementation method of the existing application. Detailed Implementation

[0050] This disclosure will be described in detail below with reference to the accompanying drawings.

[0051] Figure 1 This is an external perspective view showing the earphone unit Ae, which includes a pair of left earphones LE and right earphones RE, comprising a TWS earphone assembly A. Figure 2 This is an exemplary external perspective view showing the headphone assembly inserted into the charging holder.

[0052] Since the left and right earpieces form a symmetrical pair, reference numerals are assigned to only one of them, and the same reference numerals are used for the same parts of the earpieces.

[0053] The TWS earphone assembly A, which includes a right earphone (RE) and a left earphone (LE) and has TES therapeutic function according to this disclosure, can be made in various shapes and designs.

[0054] The main body housing B of the headphones RE and LE is a long cylindrical body that houses the circuitry and a rechargeable battery (not shown), and the speakers 40 for listening to sound are respectively housed in the ear unit I connected to the main body housing B.

[0055] Electrodes M, which are covered or partially exposed by various conductive metals, conductive rubbers or conductive plastics, are provided on the outer periphery of the ear unit I for insertion into the ear of the user LS. The position and shape of the electrodes M are determined so that the TES signal is optimally transmitted to the human body by making the electrodes M in close contact with the inner ear of the user LS.

[0056] Each main body strip Bb extending downwards from the earphone unit of the main body shell B is a long strip shape adapted to be inserted into the charging slot R1 of the charging bracket R, such as... Figure 2 As shown.

[0057] At the end of the main body strip Bb, an earphone terminal Te is provided as the main body of the conductive electrode. The earphone terminal Te, which is the terminal, is made of a conductive magnetic material (such as neodymium) with considerable magnetic force, so that it can be easily connected by magnetic separation during use and maintained by strong magnetic force.

[0058] Each headphone terminal Te has a contact Te1 at the center and an annular contact Te2 on the outer periphery, with the contact Te1 and the annular contact Te2 being electrically separated.

[0059] exist Figure 2 and Figure 3 The charging terminal Tr at the end of the charging slot R1 of the charging bracket R shown is configured as a terminal for connecting to the headphone terminal Te, and the above-described terminal connection configuration using the magnet attachment method is also preferred.

[0060] refer to Figure 4 The circuit block diagram is described.

[0061] The first circuit C1 of the board housed in one of the headphones RE and LE includes a Bluetooth communication module 10, a memory 15, a decoder 20, a D / A converter 25, an audio amplifier 30, a speaker 40, a controller 90, and a DC / DC converter 100 operated by a user LS interface 80.

[0062] The second circuit C2, housed in another board within the headphones RE and LE, includes a Bluetooth communication module 10, a memory 15, a decoder 20, a D / A converter 25, an audio amplifier 30, a speaker 40, and a controller 90 operated via a user LS interface 80. A TES signal generator 110 (which is a low-frequency generator for TES treatment and connected to the controller 90) and a variable amplifier 120 for amplifying the TES signal are provided.

[0063] In the above, the DC / DC converter 100, connected to the controller 90 of the first circuit C1, is used to equally boost or reduce the voltage matching of the TES signal strength applied to the electrodes M of each of the right earphone RE and the left earphone LE when the user LS operates the TES signal strength using the user LS interface 80; the TES signal generator 110, connected to the controller 90 of the second circuit C2, generates the TES signal to be applied to the user LS; and the variable amplifier 120 amplifies these signals and transmits the signals to the earphone RE.

[0064] When the left earphone LE and the right earphone RE are connected via the link cable LC, which will be described later, and are in an electrically connected state through the user LS's body, the variable amplifier 120 is used as a switchable component via the DC / DC converter 100.

[0065] With this configuration, the TES signal generation device and the TES signal strength control device are respectively distributed in the first circuit C1 and the second circuit C2 of the corresponding earphones RE and LE. This allows for minimizing the size of each of the earphones RE and LE and maximizing the battery capacity accommodated, thereby extending the life of the device.

[0066] The TES signal generated by the earphone RE operates by passing through the user's body via both ears and LS, thus requiring conductivity. Therefore, the link cable LC is provided as a component to serve as a conductive device.

[0067] The link cable LC is a flexible conductor and includes cable terminals Tc at its respective ends, which are magnetically attached to the headphone terminals Te of the headphones RE and LE, respectively, enabling the link cable LC and the headphones RE and LE to conduct electricity. Magnetic forces can be overcome, allowing the user LS to easily disconnect the link cable LC from the headphones RE and LE.

[0068] The link cable LC is electrically connected via cable terminal Tc to apply the output signals from the DC / DC converter 100 in the first circuit C1 and the variable amplifier 120 in the second circuit C2 to the user's headphones RE and LE, thereby enabling electrical conduction through the body.

[0069] When the user LS is not using the TES treatment function, the link cable LC can be separated from the earphone RE and LE by overcoming the magnetic force, and can be housed in the cable receiving space CC set in the charging bracket R. Therefore, the charging bracket can be configured to prevent damage to the cable terminals Tc or can be set as a separate bag.

[0070] The charging terminal Tr at the end of the charging slot R1 of the charging bracket R and the charging terminal Tr through which grounding and voltage Vin are applied are configured as terminals for connection to the headphone terminal Te, and the terminal configuration using the magnetic attachment method is also preferred.

[0071] Each cable terminal Tc of the link cable LC and the charging terminal Tr of the charging bracket R have a contact pin tp that protrudes from the center and is activated by an internal spring (not shown) to connect with the earphone terminal Te of the corresponding earphone in the earphones RE and LE, and an annular contact tr that is electrically separated from the contact pin tp, thereby performing current conduction (because the charging terminal Tr has the same configuration as the earphone terminal, the terminal configuration of the charging terminal Tr is not shown in the figure).

[0072] The operation of a TWS earphone assembly including TES therapeutic function with the above configuration, according to this disclosure, is described.

[0073] (1) When the user LS is not using the earphones RE and LE of this disclosure and houses them in the charging slot R1 of the charging holder R, the charging terminal Tr below the charging slot R1 and the earphone terminals Te of the earphones RE and LE are connected to enter the charging standby mode. In the charging standby mode, the voltage Vin of the battery (not shown) is charged via the connected terminals, and in this state, the TES treatment function of the earphones RE and LE is not activated due to the absence of the link cable LC (see [link]). Figure 6 ).

[0074] (2) When user LS performs normal audio listening, the link cable LC is housed in the cable housing space CC of the charging bracket R, and the headphones RE and LE operate in the normal audio listening routine (if the function is provided to the headphones) or through the user interface 80.

[0075] (3) When the user LS wishes to use the TES therapy function only, or wishes to listen to rehabilitation music while using the TES therapy function, the link cable LC is removed from the cable housing space CC and attached to the headphone terminals Te of the left earphone LE and the right earphone RE with magnets, and an electrical connection is made between the terminals.

[0076] Then, a TES signal from the variable amplifier 120 (which amplifies the TES signal from the TES signal generator 110 of the second circuit C2 of one of the earphones RE and LE selected by the user LS interface 80) is applied to one ear of the user LS to be excited, and the TES signal is electrically connected to the DC / DC converter 100 of the first circuit C1 of the other earphone RE and LE and is transmitted through both ears of the user LS, thereby allowing low-frequency waves to be applied to the user's body, thus performing a therapeutic function (see...). Figure 5 and Figure 7 :exist Figure 7 In this circuit, a buffer circuit 150 is provided to prevent damage to the circuit when the voltage level of the TES signal is higher than the voltage set by the controller 90.

[0077] (4) When user LS adjusts the strength of the TES signal using user LS interface 80, the DC / DC converter 100 of the first circuit C1 matches the strength of the TES signal with the strength of the TES signal of the second circuit C2 based on the signal adjusted by the controller 90 of the second circuit C2, thereby controlling the strength of the signal applied to both ears to be the same (see...). Figure 7 ).

[0078] Figure 8 The actual circuit configuration of a TWS earphone component A with TES therapeutic function according to this disclosure is shown.

[0079] The Bluetooth communication module 10, memory 15, decoder 20, D / A converter 25 and audio amplifier 30 of each of the first circuit C1 and the second circuit C2 can be integrated into a single chip, and the TES signal generator 110 and the variable amplifier 120 can be configured as analog circuits.

[0080] The configuration and operation of this disclosure will be described in more detail below.

[0081] The second circuit C2, which is the other of the two separate circuits of the left and right earphones RE and LE, has a TES signal generator 110 that generates a low-frequency wave for TES treatment and is connected to the controller 90 and the variable amplifier 120 to amplify the low-frequency signal. The output of the variable amplifier is determined by the voltage of the first circuit C1.

[0082] Figure 7 This illustrates how the TES signal voltage (intensity) can be output variably, wherein the variable amplifier 120 switches the voltage of the variable DC / DC converter 100 to ON / OFF and outputs it variably via user operation.

[0083] According to user operation, the output voltage of the TES signal is determined based on the voltage of the variable DC / DC converter 100. For example, if the voltage of the variable DC / DC converter 100 is 4V, the voltage level of the TES signal becomes 4V, and the voltage of the variable DC / DC converter 100 and the voltage level of the TES treatment signal become 20V.

[0084] The reason why the TES signal should be output in a variable manner is that when the TES signal is applied to the user's body (inner ear), the intensity of the electrical stimulation felt by each person is different, and the actual electrical stimulation felt by the user's LS varies depending on the condition of the body at the time of use (such as the condition of the skin covered by the electrodes, humidity, and the degree of adhesion to the skin).

[0085] Therefore, at the minimum level step, the output voltage of the TES signal can be set to a very small level that almost no one can feel the stimulus, and conversely, at the maximum level step, the output voltage of the TES signal can be set to a voltage level that statistically everyone can feel the stimulus, and it is desirable to set the voltage values ​​between the voltage levels to a specific step (10 steps (level 1 to 10), and then evenly distribute the output interval values ​​of the TES signal between each level).

[0086] When the link cable LC is disconnected from the earphones RE and LE, the earphones RE and LE are used only for listening to sound. In order to use the therapeutic function (therapeutic mode) via TES signal by electrically connecting a pair of left earphones LE and right earphones RE by attaching the link cable LC, a device is needed to determine whether the link cable LC is connected between the left earphone LE and right earphone RE.

[0087] This is because if the TES signal generator 110 and the variable DC / DC converter 100 operate simultaneously with the left earphone LE and the right earphone RE, unnecessary current consumption will naturally occur, thereby shortening the usage time of the built-in batteries of the earphone RE and LE.

[0088] Figure 7 and Figure 8 This is a block diagram illustrating the operation of detecting whether the left earphone LE and the right earphone RE are connected via the link cable LC.

[0089] The buffer circuit 150 is used to prevent damage to the entire circuit due to the high voltage of the variable DC / DC converter 100.

[0090] exist Figure 8In this configuration, the Det port from the Bluetooth communication module 10 is configured to be low when the voltage of the output variable DC / DC converter 100 is applied (i.e., when the link cable LC is connected to the earphones RE and LE), and in a listening-only mode when no voltage is applied (i.e., when the link cable (LC) is disconnected from the earphones RE and LE), allowing the connection status of the left earphone LE and the right earphone RE to be determined. Furthermore, even if the output voltage from the variable DC / DC converter 100 is very high, it is protected by the circuit protection function of the transistor Q.

[0091] Although not a primary technical aspect of this disclosure, references Figure 2 and Figure 3 The charging stand R, which is a corresponding component of the headphone assembly A of this disclosure, is described in detail.

[0092] Although various shapes and configurations can be adopted, the interior of the charging bracket R is divided into separate upper and lower spaces, namely a cable receiving section Rc with a cable receiving space CC and an earphone charging section Re with a pair of elongated slit-shaped charging slots R1. The cable receiving space CC is a recessed portion for accommodating the link cable LC. The pair of elongated slit-shaped charging slots R1 accommodate the earphones RE and LE, and the charging terminals Tr are located in the lower part of the earphone charging section.

[0093] From the perspective of convenient storage and portability, it is preferable to provide a cover plate C independent of the cable receiving part Rc, such that the cable receiving part Rc and the cover plate C are axially connected at the hinge axis H, so that the cover plate C can be opened or closed by rotating relative to the cable receiving part Rc.

[0094] The cable receptacle Rc and the headphone charging section Re can be formed as separate cylindrical bodies and stacked on top of each other using the engagement guide G shown in the figure, or they can be formed as a bag and a charging bracket with the cable receptacle Rc as a separate receptacle bag (not shown).

Claims

1. A TWS earphone assembly (A), the TWS earphone assembly (A) comprising: Electrode (M), said electrode (M) is used to make an electrical connection with the skin of the user's ear on the outer surface of the ear unit (I) of each of a pair of electrically separated left and right earphones (RE, LE); The circuitry is housed in each of the earphones (RE, LE) and includes a Bluetooth communication module (10), a memory (15), a decoder (20), a D / A converter (25), an audio amplifier (30), a speaker (40), and a controller (90) controlled via a user (LS) interface (80). A charging stand (R) has terminals connected to terminals of the earphones (RE, LE) to enable charging of the earphones (RE, LE). A variable DC / DC converter (100) is provided in a first circuit (C1), which is a separate circuit for one of a pair of separate left and right earphones (RE, LE), and the variable DC / DC converter (100) is connected to the controller (90). A TES signal generator (110) and a variable amplifier (120), the TES signal generator generating a low-frequency signal for treatment, the variable amplifier being configured to amplify the low-frequency signal, wherein the TES signal generator and the variable amplifier are disposed in a second circuit (C2), the second circuit (C2) being the other of a pair of separate circuits for the right and left earpieces, and the TES signal generator and the variable amplifier are connected to the controller (90); and A link cable (LC) selectively attaches to or disconnects from the terminals of a pair of left and right earphones (RE, LE) to electrically connect or disconnect the earphones (RE, LE). The TWS earphone component is configured to selectively, alone or simultaneously, perform the sound playback function and the TES therapy function as TWS earphones. Specifically, the sound playback function is performed when the pair of left and right earphones (RE, LE) are used with the link cable (LC) disconnected from the pair of left and right earphones (RE, LE). When the terminals of a pair of earphones (RE, LE) are connected to the terminals of the link cable (LC), the TES treatment function is performed by allowing the low-frequency signal to flow through the body of the user (LS) between the electrodes (M) of the earphones (RE, LE).

2. The TWS earphone assembly (A) according to claim 1, wherein, The charging mode and usage mode are switched by selectively connecting the terminals of the earphones (RE, LE) to the terminals of the link cable (LC) and the terminals of the earphones (RE, LE) to the terminals of the charging stand (R).

3. The TWS earphone assembly (A) according to claim 1, wherein, When the user (LS) performs normal audio listening... The link cable (LC) is housed in the cable receiving space (CC) of the charging bracket (R) for sound reception, and Specifically, when the user (LS) uses the TES therapy function alone or in conjunction with audio listening, The terminals of the link cable (LC) are connected to the terminals of the earphones (RE, LE), and the TES signal from the variable amplifier (120) is applied to one ear of the user (LS) for electrical connection. The variable amplifier (120) amplifies the TES signal from the TES signal generator (110) of the second circuit (C2) of the earphones (RE, LE), and The variable amplifier is electrically connected to the DC / DC converter (100) of the first circuit (C1) of the other earpiece in the earpieces (RE, LE), and the TES signal is applied to both ears of the user (LS) and the low-frequency signal is applied to the user's body.

4. The TWS earphone assembly (A) according to claim 1, wherein, The electrical connections of the first circuit (C1), the second circuit (C2), and the link cable (LC) housed in the main body housing (B) of the pair of left and right earphones (RE, LE) are made on or off by using the electrode body of the magnet connection and disconnection terminals.

5. The TWS earphone assembly (A) according to claim 1, wherein, The charging stand (R) includes: A cable receiving portion (Rc) having a cable receiving space (CC) configured to receive the link cable (LC); and The headphone charging section (Re) has a charging slot (R1) configured to accommodate the headphones (RE, LE) that is slit-shaped, and a charging terminal (Tr) is located in the lower part of the charging slot. The headphone charging section (Re) and the cable receiving section (Rc) are either separately arranged or stacked together to form a single component.

6. The TWS earphone assembly (A) according to claim 1, wherein the TWS earphone assembly (A) further comprises: The TES signal generator (110) connected to the controller (90) of the first circuit (C1) and the variable amplifier (120) configured to amplify the low-frequency signal, A buffer circuit (150) is configured between the variable DC / DC converter (100) and the controller (90) of the second circuit (C2) to prevent circuit damage when the voltage level of the TES signal is higher than the voltage set by the controller (90).

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