CN218499260U - Sound box - Google Patents

Abstract

The application relates to intelligent audio amplifier technical field discloses an audio amplifier, includes: the body is provided with an accommodating cavity with an opening; the top cover assembly is arranged at the opening end of the accommodating cavity in a covering mode; the microphone assembly is arranged in the accommodating cavity; the microphone assembly is provided with a sound pickup hole, and the sound pickup hole faces the top cover assembly and can be shielded by the top cover assembly. This application utilizes the top cap subassembly to shelter from the pickup hole of microphone subassembly, not only can guarantee the pleasing to the eye of the outward appearance of audio amplifier, can also improve the pickup effect of audio amplifier.

Description

Sound box

Technical Field

The application relates to intelligent audio amplifier technical field, for example relate to a audio amplifier.

Background

At present, in the technical field of sound boxes, a microphone realizes an intelligent control function through sound transmission. In order to make the sound reach the microphone position better and obtain good sound pick-up, the microphone is usually placed on the top of the product or in a position where it is clearly visible to the naked eye. There is a need for a sound box with both a concealed microphone structure and good sound pick-up.

The related art discloses a bluetooth speaker with a hidden microphone, which includes a speaker main body. The main body of the sound box comprises a main body rear shell provided with a containing cavity and a main body front cover which is covered and connected on the main body rear shell, and two groups of U-shaped groove surfaces are arranged on the outer surface of the outer shell on the main body rear shell; the middle part of the groove body of the U-shaped groove surface is provided with a microphone jack; the microphone is inserted into the microphone jack to form a hidden structure.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the related art is designed through a hidden structure, the microphone can be inserted into the microphone jack, and the good pickup effect of the microphone cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the present disclosure provides a sound box, which is designed to solve the problem of poor sound pickup effect of a microphone through a hidden microphone structure.

In some embodiments, the enclosure comprises: the body is provided with an accommodating cavity with an opening; the top cover assembly is arranged at the opening end of the accommodating cavity in a covering mode; the microphone assembly is arranged in the accommodating cavity; the microphone assembly is provided with a sound pickup hole which faces the top cover assembly and can be shielded by the top cover assembly.

In some embodiments, the cap assembly comprises: the outer wall of the side wall of the supporting piece is arc-shaped, and the arc corresponds to the sound pickup hole.

In some embodiments, the outer wall surfaces of the side walls of the support member are inclined inwardly in a top-down direction to form the arc shape.

In some embodiments, the microphone assembly is provided with a support table, the support being supported above the support table.

In some embodiments, the microphone assembly comprises: a pickup member; and the microphone is positioned below the sound pickup hole.

In some embodiments, the pick-up hole extends in an up-down direction.

In some embodiments, the loudspeaker enclosure further comprises: the sealing piece is arranged between the microphone and the sound pickup piece, and is provided with a communication hole which is communicated with the microphone and the sound pickup hole.

In some embodiments, the seal comprises: a first sealing part arranged between the microphone and the sound pickup piece, wherein the communication hole is arranged in the first sealing part; and the second sealing part is connected with the first sealing part and sleeved outside the microphone.

In some embodiments, an orthographic projection of the microphone assembly on the cap assembly is located within the cap assembly.

In some embodiments, the microphone assembly further comprises: the circuit board sets up the microphone deviates from one side of pickup spare, and with microphone electricity is connected.

The sound box provided by the embodiment of the disclosure can realize the following technical effects:

the sound box body provided by the scheme is provided with an accommodating cavity, and the top cover assembly is covered at the opening end of the accommodating cavity; a microphone component is arranged in the accommodating cavity; the microphone assembly is provided with a sound pickup hole, and the sound pickup hole faces the top cover assembly and can be shielded by the top cover assembly.

This application utilizes the top cap subassembly to shelter from the pickup hole of microphone subassembly, realizes hiding the microphone subassembly, not only can guarantee the pleasing to the eye of the outward appearance of audio amplifier, can also improve the pickup effect of audio amplifier.

This scheme will pick up the position setting of sound hole and not exposing the position in the outside, can make the pickup hole on the basis of guaranteeing the pickup effect, make the whole pickup effect of audio amplifier reinforcing.

This scheme sets up and hides the pickup hole in the inside of audio amplifier, can make the aesthetic property reinforcing of audio amplifier, guarantees the pickup effect of audio amplifier.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic cross-sectional view of a microphone assembly and a top cover assembly provided by an embodiment of the present disclosure;

fig. 2 is a schematic cross-sectional structural view of another microphone assembly provided by an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a sound pickup hole provided in the embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a microphone board provided in the embodiment of the present disclosure;

FIG. 5 is a schematic view of an overall structure of a sound box according to an embodiment of the present disclosure;

FIG. 6 is a diagram illustrating the tuning effect of a loudspeaker enclosure with a removable cover assembly according to an embodiment of the present disclosure;

FIG. 7 is a diagram illustrating the tuning effect of an unremoved cover assembly of an enclosure according to an embodiment of the present disclosure.

Reference numerals:

100: a body; 110: an accommodating chamber;

200: a cap assembly; 210: a support member; 211: arc-shaped;

300: a microphone assembly; 310: a support table; 301: a sound pickup hole; 302: a pickup member; 303: a microphone; 304: a circuit board;

400: a seal member; 401: a communicating hole; 410: a first seal portion; 420: a second seal portion.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.

In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein.

Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings.

These terms are used primarily to better describe the disclosed embodiments and their embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases.

The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components.

Specific meanings of the above terms in the disclosed embodiments can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more, unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Currently, in order to achieve the sound pickup effect, the microphone 303 is generally placed on the top of the product or in a position which is obviously visible to the naked eye, and the arrangement can affect the appearance of the product. There is a need in the market for a concealed microphone structure that is not only aesthetically pleasing, but also does not affect the sound pickup effect of a sound box.

The audio amplifier that this scheme provided passes through hidden structural design, effectively improves product aesthetic property and microphone 303 pickup effect. In addition, the problem of heat dissipation of the conventional circuit board 304 flatly attached to the touch housing can be solved.

As shown in fig. 1-5, an embodiment of the present disclosure provides an acoustic enclosure with a concealed microphone 303, which includes a body 100, a cover assembly 200, and a microphone assembly 300.

The body 100 is provided with a receiving cavity 110 having an opening; the top cap assembly 200 is disposed at the open end of the accommodating chamber 110; the microphone assembly 300 is disposed in the accommodating cavity 110; the microphone assembly 300 is provided with a sound pickup hole 301, the sound pickup hole 301 faces the top cover assembly 200 and the sound pickup hole 301 can be shielded by the top cover assembly 200.

The sound box body 100 provided by the scheme is provided with the accommodating cavity 110, and the top cover assembly 200 is covered at the opening end of the accommodating cavity 110; the microphone assembly 300 is disposed inside the receiving chamber 110. This arrangement makes the positional relationship among the body 100, the cover assembly 200 and the microphone assembly 300 clear, and makes the entire structure of the speaker box complete.

In this scheme, microphone subassembly 300 is provided with sound pickup hole 301, and sound pickup hole 301 is towards top cap assembly 200 and can be sheltered from by top cap assembly 200. It will be appreciated that this arrangement allows the pickup opening 301 to be shielded and formed as a hidden structure by the top cover assembly 200 of the enclosure itself.

This application utilizes top cap assembly 200 to shelter from microphone assembly 300's pickup hole 301, realizes hiding microphone assembly 300, not only can guarantee the pleasing to the eye of the outward appearance of audio amplifier, can also improve the pickup effect of audio amplifier.

In this embodiment, pick-up hole 301 passes through sheltering from of top cap subassembly 200, realizes the inside pickup of audio amplifier product, and at the pickup in-process, can not expose in the external world, also can not receive the interference of external audio amplifier.

This scheme will pick up the position setting of sound hole 301 in the position that does not expose outside, can make and pick up sound hole 301 on the basis of guaranteeing the pickup effect, make the whole pickup effect of audio amplifier reinforcing, be favorable to user's experience sense.

This scheme sets up and hides at the inside pickup hole 301 of audio amplifier, can also make the aesthetic property reinforcing of audio amplifier. In conventional approaches, the microphone is placed on top of the product or in a visible position apparent to the naked eye. The sound pickup hole 301 of this scheme setting has solved this kind of problem that is not aesthetic, utilizes top cap assembly 200 to shelter from it, has improved the outward appearance of audio amplifier product.

Optionally, the top cover assembly 200 includes a support 210, and an outer wall surface of a sidewall of the support 210 is an arc 211, where the arc 211 is disposed corresponding to the sound pickup hole 301.

In this embodiment, the supporting member 210 is disposed corresponding to the sound pickup holes 301 to provide a sound pickup reflecting arc to the sound pickup holes 301, so that the sound pickup effect of the sound box is enhanced. The support 210 is shaped in an arc 211 to direct the pickup reflex arc toward the pickup hole 301.

It will be appreciated that the support 210 could be provided in other forms than the arc 211, but the effect is detrimental to picking up reflections of the reflected arc. The preferred arc 211 structure of this scheme is favorable to the pickup reflection arc to the pickup reflection of pickup hole 301, can strengthen the pickup effect of audio amplifier.

In this embodiment, the top cap assembly 200 includes a supporting member 210, and the supporting member 210 is configured to support the entire top cap assembly 200, so as to provide a shielding space for the sound pickup hole 301.

Support piece 210's lateral wall personally submits arc 211 in this scheme, and arc 211 corresponds sound picking hole 301 setting. The top cover assembly 200 has an arc 211 as a whole and is concave toward the sound-collecting hole 301. The concave sound pickup hole 301 is arranged in a mode that shielding and sound pickup reflection can be achieved simultaneously, and the two purposes are achieved.

In this embodiment, the supporting member 210 provides a supporting force for the top cap assembly 200, so that a certain distance is kept between the top cap assembly 200 and the microphone assembly 300, and a hidden space is provided for hiding the structure of the microphone 303.

In this embodiment, as shown in fig. 2, the supporting member 210 of the top cover assembly 200 can enhance the aesthetic property of the sound box, so that the whole structure of the sound box body 100 is shielded by the top cover assembly 200. Hiding the components and structures inside the receiving chamber 110.

In addition, the arc 211 structure formed on the outer wall surface of the supporting member 210 provides a reflecting arc area for the sound pickup hole 301, which can greatly enhance the sound pickup effect.

Alternatively, in a top-down direction, the outer wall surfaces of the sidewalls of the support 210 are inclined inward to form an arc 211.

In this embodiment, the sidewall of the supporting member 210 is inclined. As shown in fig. 1, the outer wall surface of the sidewall of the supporting member 210 is inclined inward in a direction from the top cover assembly 200 to the microphone assembly 300 to form an arc 211.

In this embodiment, the form of the supporting member 210 is preferably an arc 211 structure as shown in fig. 1, and the sound pickup hole 301 of the sound box is disposed at a position corresponding to the position where the top cover assembly 200 is disposed according to the present scheme. The support 210 may be made to provide a sound pickup reflection arc for the sound pickup hole 301.

It can be understood that the supporting member 210 serves as a connecting member in the middle, which not only skillfully enables the top cover assembly 200 to cover the microphone assembly 300, but also utilizes the arc 211 structure thereof to tilt inwards to form a shielding and hiding area for the sound pick-up hole 301 to be shielded by.

It can be understood that the inwardly inclined arc 211 structure provides a good reflection arc area for the sound pickup hole 301, so that the sound pickup effect of the whole sound box is greatly enhanced.

In this embodiment, a limiting protrusion and a limiting groove are respectively disposed between the top cover assembly 200 and the supporting member 210, and the limiting protrusion and the limiting groove can be adapted to each other, so that the supporting member 210 has a certain limiting effect on the position of the top cover assembly 200.

Optionally, the microphone assembly 300 is provided with a support stage 310, and the support 210 is supported above the support stage 310.

In this embodiment, the microphone assembly 300 is provided with a support platform 310, and the support platform 310 is used for supporting the support member 210 so that the top cover assembly 200 is supported.

In this embodiment, the supporting member 210 is supported above the supporting platform 310, and the positional relationship between the supporting member 210 and the supporting platform 310 is set to ensure that the supporting member 210 and the microphone assembly 300 can form a shielding positional relationship, so that the stability of shielding the sound pickup hole 301 is enhanced.

In this embodiment, as shown in fig. 1, the structure between the whole microphone assembly 300 and the top cover assembly 200 is compact, and the arrangement of each component has its meaning and function. The support table 310 enhances the stability of the support 210 in supporting the cap assembly 200.

Optionally, microphone assembly 300 includes a pickup 302 and a microphone 303, with microphone 303 being located below pickup hole 301.

In this embodiment, a schematic structural diagram of the microphone assembly 300 shown in fig. 2 is shown. The microphone assembly 300 includes a pickup 302, and a support 310 is provided on the pickup 302.

The support platform 310 and the pickup piece 302 are arranged in a stable corresponding relationship with each other in the present embodiment as shown in fig. 2, and the support member 210 and the pickup piece 302 are arranged in a stable corresponding relationship. The support table 310 ensures the stability of the support 210, and the support 210 is again in the shape of an arc 211 facing the sound pickup hole 301. The sound pickup member 302 can perform its own function well.

In this embodiment, the microphone assembly 300 includes a sound pickup element 302 and a microphone 303, and the microphone assembly 300 improves the sound pickup function of the whole sound box. The microphone 303 is arranged below the sound pickup hole 301, so that sound pickup of the sound pickup hole 301 to the microphone 303 is facilitated.

Alternatively, the pickup hole 301 extends in the up-down direction.

In this embodiment, the sound pickup hole 301 extends in the top-to-bottom direction above the microphone 303. The sound pickup hole 301 is arranged in a mode that the microphone 303 can well transmit the sound to the sound pickup hole 301, the sound pickup hole 301 has a good through effect, and the arrangement helps to improve the overall sound quality of the sound box.

In this embodiment, as shown in fig. 2, the sound pickup hole 301 is hidden inside the accommodating cavity 110 of the whole sound box, and the microphone 303 can be well combined with the sound pickup hole 301 through the penetrating structure of the sound pickup hole 301, so that the whole structure of the sound box is compact.

Optionally, the sound box further comprises a sealing member 400, the sealing member 400 is arranged between the microphone 303 and the sound pickup member 302, the sealing member 400 is provided with a communication hole 401, and the communication hole 401 is communicated with the microphone 303 and the sound pickup hole 301.

In this embodiment, the sound box further comprises a sealing member 400, as shown in fig. 2, the sealing member 400 is preferably a sealing silicone. The purpose of sealing member 400 is to make the effect of microphone 303 can be fine be passed through to pick-up piece 302 in, the rethread sound pick-up hole 301 reflects to the sound pick-up reflection arc, strengthens the sound pick-up effect.

The sealing member 400 in this embodiment is provided between the microphone 303 and the sound pickup member 302, and a communication hole 401 is provided inside the sealing member 400, and the microphone 303 and the sound pickup hole 301 are communicated by the communication action of the communication hole 401.

In this scheme, the sealing member 400 is provided to make the whole structure of the microphone assembly 300 complete and compact, and enhance the sound pickup effect of the microphone 303.

In this embodiment, the sealing member 400 is provided with the microphone 303 in the inside thereof, so that the sealing property is ensured, and the communicating hole 401 is provided without affecting the sound pickup effect of the sound pickup member 302.

Optionally, the seal 400 includes a first seal portion 410 and a second seal portion 420. A first sealing portion 410 is provided between the microphone 303 and the sound pickup member 302, and a communication hole 401 is provided in the first sealing portion 410; the second sealing portion 420 is connected to the first sealing portion 410 and is disposed outside the microphone 303.

In the present embodiment, the sealing member 400 is divided into a first sealing portion 410 and a second sealing portion 420. The sealing member 400 enables the sealing property of the microphone 303 to be ensured, and the first sealing portion 410 is provided between the microphone 303 and the sound pickup member 302, enhancing the sealing effect. The second sealing part 420 is sleeved outside the microphone 303, and the lower end surface of the second sealing part 420 is abutted against the circuit board 304.

In this embodiment, the arrangement of the microphone assembly 300 can ensure that the microphone 303 works normally, and the microphone assembly has two sealing portions to enhance the sealing effect of the whole structure of the microphone assembly 300.

Optionally, the orthographic projection of the microphone assembly 300 on the cap assembly 200 is located within the cap assembly 200.

In this embodiment, the microphone assembly 300 does not extend beyond the outer edge of the top cap assembly 200, so that the front projection of the microphone assembly 300 on the top cap assembly 200 is disposed within the top cap assembly 200. As shown in fig. 3, this arrangement ensures the shielding effect of the top cover assembly 200 on the microphone assembly 300, and also ensures the sound pickup effect of the sound pickup hole 301, which is beneficial to improving the overall sound quality of the sound box.

In this embodiment, the microphone assembly 300 does not extend beyond the outer edge of the cover assembly 200 to ensure coverage of the concealed microphone 303. This scheme sets up top cap subassembly 200 also is in this purpose, not only can make audio amplifier overall structure's aesthetic property improve greatly, can also strengthen microphone 303's pickup effect.

Optionally, the microphone assembly 300 further includes a circuit board 304, and the circuit board 304 is disposed on a side of the microphone 303 facing away from the pickup 302 and electrically connected to the microphone 303.

In this embodiment, the microphone assembly 300 further includes a circuit board 304, the circuit board 304 is disposed as shown in fig. 1, and the circuit board 304 is preferably a PCBA board in this embodiment.

In this embodiment, the circuit board 304 is disposed on a side of the microphone 303 facing away from the sound pickup element 302, and the circuit board 304 is electrically connected to the microphone 303 to provide power to the microphone 303. In this embodiment, the circuit board 304 is disposed near the position of the microphone 303, which is located on the bottom side of the entire microphone assembly 300.

In this embodiment, the circuit board 304 is provided to complete the whole microphone assembly 300.

It will be appreciated that the power to the microphone assembly 300 may take other forms of power supply, and is not limited to the form of the circuit board 304.

In this embodiment, the circuit board 304 is fixedly connected to the top cap assembly 200 through a limiting member, a plurality of limiting spaces are defined by the circuit board 304 and the top cap assembly 200, each limiting space is provided with a limiting member, and the limiting members are connected to the circuit board 304 and the top cap assembly 200, so as to limit the position of the microphone assembly 300.

In this embodiment, a BOSS column is disposed in the limiting space. The BOSS column mainly comprises a screw column, a welding column and a positioning column. The screw column is preferably adopted in the scheme. Screws are provided inside the BOSS columns to press the top cover assembly 200 and the microphone assembly 300.

In this embodiment, the number of screws is plural, and the screws are distributed on the microphone assembly 300.

In the sound box in the embodiment, the microphone 303 is arranged at a hidden position of a product in an actual operation process, and the sound-collecting effect of the microphone 303 is enhanced by adding the sound-reflecting arc part, so that the problem of attractive appearance and acoustic problem of the product are effectively solved.

The data are compared before and after the sound pickup effect of the specific microphone 303 is optimized, and the gain of the sound pickup effect of the microphone 303 can be improved by comparing whether the top cover assembly 200 is detached or not as a variable. As shown in fig. 6 and 7, the tuning effect of the sound box provided by the embodiment of the present disclosure without the removed top cover assembly 200 is significantly better than the tuning effect of the removed top cover assembly 200. Therefore, the sound collecting effect of the microphone 303 is improved remarkably.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An acoustic enclosure, comprising:

a body (100) provided with an accommodation chamber (110) having an opening;

a top cover assembly (200) covering the open end of the accommodating cavity (110);

a microphone assembly (300) disposed within the receiving cavity (110); the microphone assembly (300) is provided with a sound pick-up hole (301), and the sound pick-up hole (301) faces the top cover assembly (200) and can be shielded by the top cover assembly (200).

2. The acoustic enclosure of claim 1, wherein the cover assembly comprises:

the support piece (210), the outer wall surface of the lateral wall of the support piece is arc-shaped (211), and the arc-shaped (211) is arranged corresponding to the sound pickup hole (301).

3. An acoustic enclosure according to claim 2,

in a top-down direction, outer wall surfaces of the side walls of the supporter (210) are inclined inward to form the arc shape (211).

4. An acoustic enclosure according to claim 2,

the microphone assembly (300) is provided with a support stand (310), and the support member (210) is supported above the support stand (310).

5. An acoustic enclosure according to claim 1, wherein the microphone assembly (300) comprises:

a pickup (302);

a microphone (303) located below the sound pickup aperture (301).

6. An acoustic enclosure according to claim 5,

the sound pickup hole (301) extends in the vertical direction.

7. The acoustic enclosure of claim 5, further comprising:

the sealing element (400) is arranged between the microphone (303) and the sound pickup element (302), the sealing element is provided with a communication hole (401), and the communication hole (401) is communicated with the microphone (303) and the sound pickup hole (301).

8. An acoustic enclosure according to claim 7, wherein the seal comprises:

a first seal portion (410) provided between the microphone (303) and the sound pickup (302), the communication hole (401) being provided in the first seal portion (410);

and the second sealing part (420) is connected with the first sealing part (410) and sleeved outside the microphone (303).

9. An acoustic enclosure according to any one of claims 1 to 8,

the orthographic projection of the microphone assembly (300) on the top cover assembly (200) is positioned in the top cover assembly (200).

10. An enclosure as claimed in claim 5, characterised in that the microphone assembly (300) further comprises:

the circuit board (304) is arranged on one side, facing away from the sound pickup piece (302), of the microphone (303), and is electrically connected with the microphone (303).

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