Explanation transmitter and wireless explanation device

Abstract

The utility model discloses an explanation emitter and a wireless explanation device. The explanation emitter comprises a housing, a control mainboard, a moving-coil microphone, a microphone protection net, a transceiver, a transmit-receive antenna and a battery. The shell is provided with a head part and a tail part which are away from each other; an accommodating cavity is formed in the shell; at least part of the surface of the shell forms a handle part; the control mainboard is arranged in the accommodating cavity; the moving-coil microphone is arranged at the head part of the shell and is electrically connected with the control mainboard; the microphone protective net cover is arranged at the periphery of the moving-coil microphone and is connected with the shell; the transceiver is arranged in the accommodating cavity and is electrically connected with the control mainboard; the transmitting-receiving antenna is arranged in the accommodating cavity and is far away from the area where the handle part is located, and the transmitting-receiving antenna is further electrically connected with the control mainboard; the battery is arranged in the accommodating cavity and is electrically connected with the control mainboard; by adopting the moving-coil microphone, the sound of an explainer can be picked up at a short distance, a large amount of picked environmental noise is reduced, and the voice definition and intelligibility are improved.

Description

Technical Field

[0001] This application relates to the field of audio guides, specifically to an audio guide transmitter and a wireless audio guide device. Background Technology

[0002] Wireless audio guide systems, widely used in museums, scenic spots, conferences, training sessions, and other scenarios, primarily transmit the guide's voice signal wirelessly to the audience's receiving devices, thus achieving clear and stable audio narration. Traditional wireless audio guide systems mainly consist of a transmitter and a receiver. The transmitter typically uses an electret condenser microphone (ECM) or a silicon microphone (MEMS) as the pickup device. These microphones feature high sensitivity, wide frequency response, and high-fidelity sound reproduction, enabling high-quality voice acquisition and transmission even in normal environments.

[0003] However, in complex environments such as airports, factories, and construction sites where noise levels exceed 80 decibels, traditional microphones, due to their high sensitivity, easily pick up a large amount of ambient noise, leading to a significant decrease in the signal-to-noise ratio of the speech signal and severely affecting speech clarity and intelligibility. Existing technologies sometimes employ AI algorithms to reduce noise in the acquired audio signals, but these methods suffer from the following technical drawbacks:

[0004] 1. Audio delay: AI noise reduction algorithms usually require a certain amount of processing time, which causes delays in the transmission of audio signals and affects real-time performance.

[0005] 2. Sound quality degradation: Noise reduction may cause high-frequency distortion and reduced speech clarity, affecting the speech restoration effect.

[0006] 3. Poor adaptability to strong noise environments: In strong noise environments above 80 decibels, due to the long sound pickup distance, the AI ​​noise reduction algorithm is unable to effectively improve the signal-to-noise ratio and cannot meet the actual explanation needs.

[0007] Furthermore, traditional wireless audio guide devices suffer from numerous structural design shortcomings, particularly in terms of size, weight, and portability, significantly impacting the user experience. These technical deficiencies severely affect the user experience and hinder the further development of wireless audio guide systems. Utility Model Content

[0008] To address the aforementioned technical problems, this application provides a transmitter comprising: a housing having a head and a tail portion spaced apart from each other; an internal cavity within the housing; a handle portion formed at least partially on the surface of the housing; a control mainboard disposed within the cavity; a dynamic microphone disposed at the head portion of the housing and electrically connected to the control mainboard; a microphone guard covering the periphery of the dynamic microphone and connected to the housing; a transceiver disposed within the cavity and electrically connected to the control mainboard; a transceiver antenna disposed within the cavity and located away from the handle portion, the transceiver antenna also being electrically connected to the control mainboard; and a battery disposed within the cavity and electrically connected to the control mainboard.

[0009] In some embodiments of this application, the accommodating cavity has a first antenna mounting area, which is close to the head of the housing, and the transceiver antenna is disposed in the first antenna mounting area; or, the accommodating cavity has a second antenna mounting area, which is close to the tail of the housing, and the transceiver antenna is disposed in the second antenna mounting area.

[0010] In some embodiments of this application, the transmitter further includes a lanyard, which includes: a protective sleeve that can be fitted onto the housing; and a first neck strap that has both ends fixed to the protective sleeve.

[0011] In some embodiments of this application, the length of the protective sleeve in the centerline direction of the housing is adapted to the length of the housing in the centerline direction, and when the protective sleeve is fitted onto the housing, the protective sleeve completely covers the surface of the housing; or, the length of the protective sleeve in the centerline direction of the housing is less than the length of the housing in the centerline direction, and when the protective sleeve is fitted onto the housing, the protective sleeve partially covers the surface of the housing.

[0012] In some embodiments of this application, the transmitter further includes a mounting frame disposed within the receiving cavity. The mounting frame includes a first mounting portion and a second mounting portion in its length direction. The first mounting portion is adjacent to the head of the housing. A dynamic microphone is disposed in the first mounting portion, and a control motherboard and a battery are disposed in the second mounting portion.

[0013] In some embodiments of this application, the first mounting part and the second mounting part are detachably connected.

[0014] In some embodiments of this application, the tail of the housing has a lanyard hole, and the transmitter also includes a second neck strap connected to the lanyard hole.

[0015] In some embodiments of this application, the control motherboard has a wireless communication module; and / or, the transmitter further includes a control panel disposed on the housing, the control panel being electrically connected to the control motherboard; and / or, the transmitter further includes an indicator disposed on the housing, the indicator being electrically connected to the control motherboard; and / or, the transmitter further includes a transmission interface disposed on the housing, the transmission interface being electrically connected to the control motherboard.

[0016] In some embodiments of this application, the transceiver operates in the frequency band of 2.4GHz to 2.5GHz; and / or, the transmitter further includes an extended storage interface disposed on the housing, the extended storage interface being electrically connected to the control motherboard; and / or, the transmitter further includes a windproof cover that can be placed on the microphone protective net.

[0017] This application also provides a wireless explanation device, which includes the explanation transmitter described above and at least one explanation receiver adapted to the explanation transmitter, wherein the explanation transmitter and the explanation receiver communicate wirelessly.

[0018] The beneficial effects of this application are as follows: This utility model discloses a narration transmitter and a wireless narration device. The narration transmitter includes a housing, a control main board, a dynamic microphone, a microphone protective net, a transceiver, a transceiver antenna, and a battery. The housing has a head and a tail that are far apart from each other. The interior of the housing has a receiving cavity. At least a portion of the surface of the housing forms a handle. The control main board is disposed in the receiving cavity. The dynamic microphone is disposed in the head of the housing and is electrically connected to the control main board. The microphone protective net is disposed around the dynamic microphone and is connected to the housing. The transceiver is disposed in the receiving cavity and is electrically connected to the control main board. The transceiver antenna is disposed in the receiving cavity and is located away from the area where the handle is located. The transceiver antenna is also electrically connected to the control main board. The battery is disposed in the receiving cavity and is electrically connected to the control main board. The use of a dynamic microphone can pick up the narrator's voice at close range, reduce the picking up of a large amount of environmental noise, and improve the clarity and intelligibility of the speech. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0020] Figure 1A This is a three-dimensional schematic diagram illustrating an embodiment of the transmitter of this utility model;

[0021] Figure 1B This is a bottom view of an embodiment of the transmitter described in this utility model;

[0022] Figure 1C This is a schematic diagram of the internal structure of an embodiment of the transmitter described in this utility model;

[0023] Figure 1D This is a perspective view of the mounting frame in one embodiment of the transmitter of this utility model;

[0024] Figure 1E This is a schematic diagram of the circuit composition in one embodiment of the transmitter of this utility model;

[0025] Figure 2 This is a perspective view illustrating another embodiment of the transmitter of this utility model;

[0026] Figure 3 This is a perspective view illustrating another embodiment of the transmitter of this utility model;

[0027] Figure 4 This is a perspective view illustrating another embodiment of the transmitter of this utility model;

[0028] Figure 5 This is a three-dimensional schematic diagram illustrating another embodiment of the transmitter of this utility model.

[0029] The attached figures are labeled as follows:

[0030] 100. Transmitter Explanation; 10. Housing; 11. Head; 12. Tail; 121. Lanyard Hole; 122. Second Neck Strap; 13. Receiving Cavity; 131. First Antenna Mounting Area; 132. Second Antenna Mounting Area; 14. Handle; 20. Control Mainboard; 21. Processor; 22. Transceiver; 23. Transceiver Antenna; 24. Wireless Communication Module; 25. NFC Module; 26. PA / LNA; 30. Dynamic Microphone; 31. Audio Signal Amplification Circuit; 40. Battery; 50. Microphone Protective Net; 60. Lanyard Sleeve; 61. Protective Sleeve; 62. First Neck Strap; 70. Mounting Frame; 71. First Mounting Part; 72. Second Mounting Part; 81. Control Panel; 82. Indicator; 83. Transmission Interface; 90. Windproof Cover. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other alternative implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] like Figures 1A to 1EAs shown, in one embodiment of the narration transmitter 100, the narration transmitter 100 includes a housing 10, a control motherboard 20, a dynamic microphone 30, a microphone shield 50, a transceiver 22, a transceiver antenna 23, and a battery 40; wherein, the housing 10 has a head portion 11 and a tail portion 12 that are far apart from each other; the interior of the housing 10 has a receiving cavity 13; at least part of the surface of the housing 10 forms a handle portion 14, thereby facilitating the operator's grip; the control motherboard 20, as the control center of the narration transmitter 100, is disposed within the receiving cavity 13; the dynamic microphone 30, used to collect the narrator's voice, is disposed at the head portion 11 of the housing 10. The microphone is electrically connected to the control mainboard 20; the microphone protective net 50 is placed around the dynamic microphone 30 to provide protection, and the microphone protective net 50 is also connected to the housing 10; the transceiver 22 is located inside the housing 13 and is electrically connected to the control mainboard 20; the transceiver antenna 23 is located inside the housing 13 and away from the area where the handle part 14 is located, and the transceiver antenna 23 is also electrically connected to the control mainboard 20, and the control mainboard 20 can transmit audio signals to the outside through the transceiver 22 and the transceiver antenna 23; the battery 40 is located inside the housing 13 and is electrically connected to the control mainboard 20 to supply power to the narration transmitter 100.

[0033] In this embodiment, the narration transmitter 100 uses a dynamic microphone 30, which can pick up the narrator's voice at close range (≤5cm), reducing the pickup of a large amount of environmental noise and improving the clarity and intelligibility of the speech. When the narrator's hand is holding the handle 14, since the transceiver antenna 23 is located in the area of ​​the housing 13 away from the handle 14, the transceiver 22 will not be affected by the narrator's hand when transmitting audio signals through the transceiver antenna 23 (i.e., the hand will not block the transceiver antenna 23), thus maintaining a stable signal strength. In addition, the narration transmitter 100 in this application is small in size and easy to carry.

[0034] Furthermore, in this embodiment, a transceiver 22 with a working frequency band of 2.4GHz to 2.5GHz is preferably used. It has the characteristics of low power consumption and smaller size. In environments with strong noise above 80 decibels, it has stronger noise reduction capabilities, clearer signal transmission capabilities, and higher portability. Therefore, the small size of the 2.4GHz to 2.5GHz transceiver 22 can reduce the space occupied in the housing cavity 13. At the same time, it also reduces the power consumption of the battery 40. The transmitter 100 can meet the battery life requirements by using a small capacity battery 40, which reduces the overall weight and size of the transmitter 100 and improves portability.

[0035] Furthermore, in this embodiment, the shape of the housing 10 can be, for example, a cylindrical structure, a streamlined structure, a square column structure, etc.; preferably, the middle part of the housing 10 is used as the handle part 14, which is convenient for the presenter to hold.

[0036] Furthermore, in this embodiment, the microphone protective net 50 can be a metal mesh cover, a plastic mesh cover, a fabric mesh cover (such as a windproof sponge or a dustproof cloth), etc., to prevent dust, moisture, and foreign objects from entering the dynamic microphone 30, while allowing the speaker's voice to pass through and be picked up by the dynamic microphone 30.

[0037] Furthermore, such as Figure 1C As shown, the cavity 13 has a first antenna mounting area 131. The first antenna mounting area 131 is close to the head 11 of the housing 10 and is located above the handle 14, so as to avoid affecting the transmission and reception capabilities of the transceiver antenna 23 when the presenter holds the handle 14. The transceiver antenna 23 is set at any position in the first antenna mounting area 131, for example, the transceiver antenna 23 is set on the inner wall of the housing 10 in the first antenna mounting area 131.

[0038] like Figure 1C As shown, in some other embodiments, the accommodating cavity 13 has a second antenna mounting area 132, which is close to the tail 12 of the housing 10 and located below the handle 14, so as to avoid affecting the transmission and reception capabilities of the transceiver antenna 23 when the presenter holds the handle 14; the transceiver antenna 23 is disposed at any position within the second antenna mounting area 132, for example, the transceiver antenna 23 is disposed on the inner wall of the housing 10 within the second antenna mounting area 132; or the transceiver antenna 23 is disposed on the bottom surface where the tail 12 is located.

[0039] like Figure 1D As shown, the transmitter 100 also includes a mounting frame 70 disposed within the receiving cavity 13. The mounting frame 70 includes a first mounting portion 71 and a second mounting portion 72 along its length. The first mounting portion 71 is adjacent to the head portion 11 of the housing 10 and has a frustum-shaped structure, which is adapted to the shape of the dynamic microphone 30, so that the dynamic microphone 30 can be disposed in the first mounting portion 71. The second mounting portion 72 has a slender rod-shaped structure or a plate-shaped structure. The control motherboard 20 is disposed on one side of the second mounting portion 72, and the battery 40 is disposed on the other side of the second mounting portion 72.

[0040] Preferably, in this embodiment, the first mounting part 71 and the second mounting part 72 are integrally formed. In other embodiments, the first mounting part 71 and the second mounting part 72 are detachably connected, such as by plugging, snapping, or threading, to facilitate assembly and disassembly.

[0041] Furthermore, such as Figure 1AAs shown, the narration transmitter 100 also includes a control panel 81 disposed in the housing 10, which is electrically connected to the control motherboard 20. The control panel 81 has control buttons, such as volume up / down buttons and power on / off buttons, which can be used to set parameters of the narration transmitter 100. In some embodiments, the control panel 81 has touch buttons or a touch screen, which can also be used to set parameters of the narration transmitter 100. In some embodiments, the control panel 81 is also equipped with a voice module, which allows the narrator to set the narration transmitter 100 by voice.

[0042] Furthermore, such as Figure 1B As shown, the transmitter 100 also includes an indicator 82 disposed on the housing 10, which is electrically connected to the control main board 20. The indicator 82 can be an indicator light, a display screen, etc., and can display the working status of the transmitter 100. The indicator 82 can be disposed at any position on the housing 10, preferably, as shown in the figure. Figure 1B As shown, the indicator 82 is located on the bottom surface of the tail 12.

[0043] Furthermore, the transmitter 100 also includes a transmission interface 83 disposed on the housing 10. The transmission interface 83 is electrically connected to the control motherboard 20, and can charge the battery 40 and transmit data through this transmission interface 83. The type of transmission interface 83 can be USB-A, USB-C, Lightning, Micro-USB, MagSafe, etc. The transmission interface 83 can be disposed at any position on the housing 10, preferably, as shown below. Figure 1B As shown, the transmission interface 83 is located on the bottom surface where the tail 12 is located.

[0044] Furthermore, the transmitter 100 also includes an expansion storage interface (not shown) on the housing 10, which is electrically connected to the control motherboard 20. The expansion storage interface can hold TF cards (TransFlash Card), SD cards (Secure Digital Card), NM cards (Nano Memory Card), etc. For example, if a TF card contains pre-recorded audio, and the TF card is inserted into the expansion storage interface, the transmitter 100 can play the recorded audio.

[0045] like Figure 1EAs shown, in this embodiment, the control motherboard 20 has a processor 21 and an audio signal amplification circuit 31. The dynamic microphone 30 is electrically connected to the processor 21 through the audio signal amplification circuit 31. The function of the audio signal amplification circuit 31 is to amplify the weak signal output by the dynamic microphone 30 to a voltage range suitable for the input of the processor 21, thereby facilitating the processor 21 to identify and process it. It should be understood that the audio signal amplification circuit 31 is prior art, and its composition will not be described in detail here.

[0046] Furthermore, the control motherboard 20 also has a wireless communication module 24, which can be one or more of the following: Wi-Fi module, Bluetooth module, cellular communication module (4G LTE, 5G NR), UWB module (Ultra-Wideband Module), and Starlight module. For example, the narration transmitter 100 can connect to a remote server through the Wi-Fi module or cellular communication module to upload the narrator's voice data to the remote server for easy recording, sharing, and editing. The narration transmitter 100 can also receive trigger signals from external sources (such as Bluetooth modules or UWB modules in specific locations like exhibition halls or tourist attractions) through the Bluetooth module or UWB module, thereby automatically triggering the narration content of the narration transmitter 100.

[0047] In some embodiments, the control motherboard 20 also has an ultrasonic receiving module (not shown). After receiving an ultrasonic signal of a specific frequency sent from an external source (such as an ultrasonic transmitting module in a specific location like an exhibition hall or tourist attraction), the ultrasonic receiving module automatically triggers the narration transmitter 100 to narrate the content.

[0048] Furthermore, such as Figure 1E As shown, the control motherboard 20 also has an NFC module 25. The transmitter 100 can also connect to electronic devices (such as smartphones) through the NFC module 25 to set parameters. In addition, the transmitter 100 can also connect to electronic devices for communication through wireless or wired means such as Bluetooth modules.

[0049] Furthermore, such as Figure 1E As shown, the control motherboard 20 also has a PA / LNA 26, PA (Power Amplifier) ​​and LNA (Low Noise Amplifier). The PA / LNA 26 is located between the transceiver 22 and the transceiver antenna 23, and is used to enhance the signal transmission and reception performance, respectively.

[0050] like Figure 1EAs shown, in this embodiment, the processor 21, transceiver 22, wireless communication module 24, NFC module 25, and PA / LNA 26 are all mounted on the control motherboard 20 as a whole; while the control panel 81, dynamic microphone 30 and audio signal amplification circuit 31, and transceiver antenna 23 are each separately mounted on the housing 10. In some other embodiments, all the above-mentioned electronic components are mounted on the control motherboard 20 as a whole for easy assembly; or in some other embodiments, these electronic components are independent modules, each mounted on the housing 10 for easy replacement.

[0051] In addition, the wireless communication module 24, NFC module 25 and ultrasonic receiver module mentioned above are all optional solutions, and it can be determined whether the transmitter 100 is equipped with the above modules according to different usage scenarios.

[0052] like Figure 2 As shown, in another embodiment of the transmitter 100, the transmitter 100 also includes a windproof cover 90 that can be placed over the microphone protective net 50. The shape and size of the windproof cover 90 are adapted to the microphone protective net 50 to reduce wind noise and popping sounds, and to prevent dust, saliva, moisture, etc. from entering the microphone. The material of the windproof cover 90 can be foam, fur, nylon, or metal. The other components of the transmitter 100 in this embodiment are the same as described above. Figures 1A to 1E The embodiments shown are the same, and will not be repeated here.

[0053] like Figure 3 and Figure 4 As shown, as another embodiment of the transmitter 100, this embodiment is similar to the one described above. Figures 1A to 1E The difference in the illustrated embodiment is that the narration transmitter 100 also includes a lanyard 60, which includes a protective sleeve 61 and a first neck strap 62. The protective sleeve 61 can be fitted onto the housing 10 to protect the housing 10. The two ends of the first neck strap 62 are fixed to the protective sleeve 61. When the protective sleeve 61 is fitted onto the housing 10, the first neck strap 62 can be worn around the neck of the narrator, making it convenient for the narrator to use the narration transmitter 100 without holding it. At the same time, the narrator can also hold the protective sleeve 61 while using the narration transmitter 100.

[0054] Preferably, the outline of the head portion 11 of the housing 10 is larger than the outline of the protective sleeve 61, thereby preventing the transmitter 100 from escaping the restraint of the protective sleeve 61. Preferably, the protective sleeve 61 can be made of nylon, fur, or other materials.

[0055] like Figure 3As shown, in a specific embodiment, the length of the protective sleeve 61 in the X direction of the center line of the housing 10 is adapted to the length of the housing 10 in the X direction of its center line. When the protective sleeve 61 is fitted onto the housing 10, the protective sleeve 61 completely covers the surface of the housing 10, thereby providing all-round protection for the housing 10.

[0056] In some embodiments, the protective sleeve 61 has a lateral opening (not shown), and the protective sleeve 61 has at least an inner layer structure and an outer layer structure. The user's hand can enter between the inner layer structure and the outer layer structure through the lateral opening. In this way, the protective sleeve 61 can also play a role in keeping warm, which is beneficial for the presenter to use in winter.

[0057] like Figure 4 As shown, in some embodiments, the length of the protective sleeve 61 in the X direction of the center line of the housing 10 is less than the length of the housing 10 in the X direction of its center line. When the protective sleeve 61 is fitted onto the housing 10, the protective sleeve 61 partially covers the surface of the housing 10, thereby making it easier to expose the control panel 81, which is beneficial for the presenter to set up the control panel 81.

[0058] like Figure 1B and Figure 5 As shown, in another embodiment of the narration transmitter 100, the tail 12 of the housing 10 has a lanyard hole 121. The narration transmitter 100 also includes a second neck strap 122 connected to the lanyard hole 121. The second neck strap 122 can be worn around the neck of the narrator for easy carrying.

[0059] This application also discloses a wireless explanation device, which includes an explanation transmitter 100 as described above and at least one explanation receiver adapted to the explanation transmitter 100, wherein the explanation transmitter 100 and the explanation receiver communicate wirelessly; the explanation transmitter 100 transmits a wireless audio signal, and the explanation receiver receives the wireless audio signal.

[0060] Preferably, a single narration transmitter 100 can communicate with multiple narration receivers, so that when the narrator is giving a narration, all listeners can hear the narrator's voice; for example, in a scenario where a tour guide is giving a narration to multiple tourists.

[0061] At the same time, a single narration receiver can wirelessly communicate with multiple narration transmitters 100 simultaneously, thus allowing listeners to hear the voices of multiple narrators; for example, multiple narrators can give presentations in different exhibition areas, and listeners can freely choose to receive the audio of different narrators.

[0062] Finally, it should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this application, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0063] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0064] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A narration transmitter, characterized in that, include: A housing having a head and a tail that are spaced apart from each other; the interior of the housing having a receiving cavity; and at least a portion of the surface of the housing forming a handle portion. The control board is located within the receiving cavity; A dynamic microphone is located at the head of the housing and is electrically connected to the control motherboard; A microphone protective net is installed around the dynamic microphone and connected to the housing; A transceiver is disposed within the receiving cavity and is electrically connected to the control motherboard; A transceiver antenna is disposed within the receiving cavity and in an area away from the handle portion; the transceiver antenna is also electrically connected to the control motherboard. The battery is housed within the receiving cavity and is electrically connected to the control motherboard.

2. The transmitter according to claim 1, characterized in that, The accommodating cavity has a first antenna mounting area, which is close to the head of the housing, and the transceiver antenna is disposed in the first antenna mounting area. Alternatively, the receiving cavity may have a second antenna mounting area, the second antenna mounting area being close to the tail of the housing, and the transceiver antenna being disposed within the second antenna mounting area.

3. The transmitter according to claim 1, characterized in that, The transmitter also includes a lanyard, which comprises: A protective sleeve, which can be fitted onto the housing; The first neck strap has both ends fixed to the protective sleeve.

4. The transmitter according to claim 3, characterized in that, The length of the protective sleeve in the center line direction of the housing is adapted to the length of the housing in the center line direction. When the protective sleeve is fitted onto the housing, the protective sleeve completely covers the surface of the housing. Alternatively, the length of the protective sleeve in the direction of the centerline of the housing is less than the length of the housing in the direction of its centerline, and when the protective sleeve is fitted onto the housing, the protective sleeve partially covers the surface of the housing.

5. The transmitter according to claim 1, characterized in that, The transmitter also includes a mounting frame disposed within the receiving cavity. The mounting frame includes a first mounting portion and a second mounting portion along its length. The first mounting portion is adjacent to the head of the housing. The dynamic microphone is disposed in the first mounting portion, and the control motherboard and battery are disposed in the second mounting portion.

6. The transmitter according to claim 5, characterized in that, The first mounting part and the second mounting part are detachably connected.

7. The narration transmitter according to any one of claims 1 to 2, 5 to 6, characterized in that, The tail of the housing has a lanyard hole, and the transmitter also includes a second neck strap connected to the lanyard hole.

8. The narration transmitter according to any one of claims 1 to 6, characterized in that, The control motherboard has a wireless communication module; And / or, the explanatory transmitter further includes a control panel disposed in the housing, the control panel being electrically connected to the control motherboard; And / or, the explanatory transmitter further includes an indicator disposed on the housing, the indicator being electrically connected to the control motherboard; And / or, the transmitter further includes a transmission interface disposed on the housing, the transmission interface being electrically connected to the control motherboard.

9. The narration transmitter according to any one of claims 1 to 6, characterized in that, The transceiver operates in the frequency band of 2.4GHz to 2.5GHz; And / or, the transmitter further includes an expansion storage interface disposed on the housing, the expansion storage interface being electrically connected to the control motherboard; And / or, the explanation transmitter may also include a windproof cover that can be placed over the microphone protective net.

10. A wireless explanation device, characterized in that, It includes a narration transmitter as described in any one of claims 1 to 9 and at least one narration receiver adapted to the narration transmitter, wherein the narration transmitter and the narration receiver communicate wirelessly.

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