FCC ID: 2BAFI-A18 Wireless collar clip microphone

FEATURES WARNING Professional wireless microphone solution, the system includes two transmitters, a dual channel receiver, a charging case, Type-c and Lightning adapter, especially suitable for live stream, interview, video, VLOG and teaching etc.. The transmitter and receiver have been paired at the factory, and can be used directly without setting. 2.4G wireless communication protocol is adopted, which is highly sensitive, low delay and long transmission distance. Sound can also be transmitted stably in noisy environments. Both the weight of transmitter and receiver less than 30g, which is convenient to carry and very easy to install; The back clip design can easily fix the transmitter on the clothes, and also can stably install the receiver on the camera The transmitter with a built-in high-quality omnidirectional radio microphone supports the recording modes of mono, stereo and safe audio tracks to achieve high fidelity and professional sound recording. Built in intelligent DSP noise reduction algorithm to identify and filter environmental noise, making the voice more clear. The receiver has excellent compatibility, supporting the connection of mainstream mobile phones, various cameras and computers through the expansion interface. The receiver is equipped with a color touch screen, which can visually view the real-time status of the device. The recording process can monitor the recording effect in real time, and timely adjustment. Intelligent power saving. The transmitter and receiver will automatically shut down if there is no pairing for more than 5 minutes. The charging case can store the receiver and two transmitters, and the magnetic structure ensures its stable charging. When the battery is full, the working hour of the transmitter can reach 8 hours, and the receiver can reach 3 hours. When used with the charging case, the battery life of the transmitter and receiver can be extended to 16 hours. With a carrying bag, it is easy to hold the whole set of equipment and accessories. 1. Please use this product after it is fully charged for the rst time. 2. If the product is not used for a long time (more than 60 days), it needs to be charged. 3. Do not disassemble the machine, otherwise it may cause damage for the product. 4. Do not use this product in thunderstorm weather. 5. To ensure personal safety, do not use it during driving. CHARGING CASE 1 2 3 1. Magnetic Flip Cover : Close the cover, the transmitters and receivers in the charging case are turned off. After 30 seconds, the battery indicator turns off. When the cover is opened, the transmitters and receiver in the charging case are automatically turned on, and the battery indicator lights up. 2. Battery Indicator :

>76%

26%~50%

51%~75%

25%

<10% indicator flashes When charging,breathing light. 3.Type-C Jack : The charging case support the use of a charger with an output of 5V/2A. When fully charged, the indicator light turns off. 2.4G Wireless Microphone Instruction Manual TRANSMITTER RECEIVER RX status area:

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1 2 3 4 5 6 7 8 9 1 2 3 4 5 Audio channel information. RX volume. RX input gain. Screen is locked and cannot be operated. RX power and charging status display. TX status area ( TX status area does not display content when not successfully paired with receiver ) :

Signal strength between TX 1 and RX. Noise reduction is on. TX power and charging status display. The TX is muted. Normal recording. TX Volume gain. Displays the voice strength. 1. USB Type-C : Charging interface. 1. Power Button : Press and hold to turn on or off. Short click to lock/unlock the screen. 2. RX Menu 2. 3.5mm Monitoring Jack : It is used for external microphones that do not require separate power supply. After the external microphone is connected, the built-in microphone stops collecting sound. 2. Color Touch Screen : Real time display of power, volume, signal strength, sound channel and other status information of receiver and transmitter. Slide up to enter the system setting menu. 3. Battery Indicator : The indicator is always on when the power is 20%. The indicator flashes when the power is less than 20%. It is the effect of breathing lamp when charging. After the TX is turned on, the indicator flashes quickly and then automatically shuts down, indicating that it needs to be charged immediately. 4. Built in Microphone : Used to collect sound. 5. Signal indicator : A flashing blue light indicates that pairing is in progress, and a steady blue light indicates that pairing is successful. When the receiver turns on mute, the red light is always on. 6. Power Button : Press and hold to turn on or off. Short click to turn on mute. 7. Volume+ : Increase the volume. 8. Volume- : Decrease the volume. 9. Charging Contact : Put it into the charging case to start charging. 3. 3.5mm TRS Monitoring : Plug in the headphones, speakers and other devices to monitor collecting sound in real time. 4. Charging Contact : Put it into the charging chamber to start charging. 5. USB Type-C : Charging/data port. After connecting the mobile phone through the adapter, 3.5mm TRS Monitoring stops outputting sound. RECEIVER SOFTWARE

( RX=Receiver TX= Transmitter ) 1. Mainmenu RX status area TX1 status area Swipe down on the home page to enter the receiver submenu. Swipe left and right on the submenu page to select the setting item, and swipe up again to enter the setting page. Swipe down to return to the previous menu. 3. RX Settings Channel settings Stereo (two TX correspond to the left and right channels of the receiver), Mono (the sound of the left and right channels of the receiver is the same). TX2 status area Receiver Gain Set the receiver's output volume boost.

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Receiver volume Set the output volume of the receiver. Brightness setting Set the brightness of the display. System language selection Set menu display language Factory Settings Restore the default settings of the system. System Information Display system software and hardware version information. Authentication Information Display the authentication information of the device. 6. Charging Display Page When the TX and RX are put into the charging case at the same time to start charging, the receiver screen will display as following picture. APPLICATION 1. TX The TX can be clipped directly to clothing. Receiver battery information is not displayed when the receiver is not paired. 4. TX Menu Charging Case Transmitter 1 Transmitter 2 2. Furry windshield Use furry windshield outdoor or windy day, which can make the sound clearer. After the TX and RX are successfully paired, swipe right on the home page to enter the TX1 submenu, and swipe left to enter the TX2 submenu. Swipe left and right on the submenu page to select the setting item, and swipe up again to enter the setting page. Swipe down to return to the previous menu. 5. TX Setting Microphone noise reduction settings Turn noise reduction on or off.

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Lightning Adapter Type-c Adapter Receiver

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3. The RX connected to smart phone. The RX can be connected to a mobile phone via and adapter. When using the phone to shoot video, the sound of transmitter is synchronously transmitted to the phone. PACKING LIST Receiver PARAMETER Size Weight Wireless mode EIRP

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Transmitter Receiver Charging Case 46.8*34.5*22.4 mm 47*34*26.4 mm 114*63.1*50 mm 23g 27g 171g Charging Case Transmitter x2 Receiver Operating frequency 2400-2483.5 MHz 2400-2483.5 MHz Battery type Battery capacity Battery energy Battery voltage LiPo 1S 250mAh 0.93 Wh 3.7V LiPo 1S 300 mAh 1.11 Wh 3.7V

<20 dBm

<20 dBm

Lipo 1s 1800 mAh 6.7 Wh 3.7V Type-c Adapter Lightning Adapter 4. The RX connected to camera. Type-C Adapter Lightning Adapter Furry windshield x2 Hot shoe Cold shoe Receiver Smartphone Audio Cable Camera Audio Cable Charging Cable Charging ambient temperature 0C~ 45C 0C~ 45C 0C~ 45C Operating ambient temperature

-20C~ 45C

-20C~ 45C

-20C~ 45C Communication distance Charging time Working hours 100M+

1.3H 8H 100M+

1.5H 3H

3H 2.2 Times Microphone directivity Omnidirectional Frequency response Maximum sound pressure level 120 dB SPL Maximum input level (3.5 mm)

-17 dBV (THD < 0.1%) Equivalent noise 23 dBA Monitor interface output power 30 mW@1kHz32 CERTIFICATION

Camera Manual Carrying Pouch MIC Made in China

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This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help. Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment The devices has been evaluated to meet general RF exposure requirement the device can be used in portable exposure condition without restriction

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Shenzhen Sunwin Telecommunication Technology Co., LTD. Antenna Specifications CUSTOMER CS P/N P/N A18 VTL37-A18-F Checked by(RF) Checkedby(QA) Approval led by Date Customer Approval AddRoom 401, West Tower, Building No.211, Tairan Industry & Trade Park, Chegongmiao, Futian District, Shenzhen City, Guangdong Province, P.R. China Tel0755-66630456 Fax0755-66630458 Emailsunwin_vip@163.com Shenzhen Sunwin Telecommunication Technology Co., LTD. Index 1 2 Specifications.................................................... 3 Impadance..........................................................4 3 Active Measurements...................................... 6 4 Mechanical Properties.....................................7 5. Environmental Characteristic..............8 AddRoom 401, West Tower, Building No.211, Tairan Industry & Trade Park, Chegongmiao, Futian District, Shenzhen City, Guangdong Province, P.R. China Tel0755-66630456 Fax0755-66630458 Emailsunwin_vip@163.com Shenzhen Sunwin Telecommunication Technology Co., LTD. 1.Specifications This report mainly provides the testing conditions of various electric and structural performance parameters for cell phone antenna - A18 Figure 2-1 shows the antenna designed by SW & The fixturing of A18 AddRoom 401, West Tower, Building No.211, Tairan Industry & Trade Park, Chegongmiao, Futian District, Shenzhen City, Guangdong Province, P.R. China Tel0755-66630456 Fax0755-66630458 Emailsunwin_vip@163.com Shenzhen Sunwin Telecommunication Technology Co., LTD. 2.Impedance 2.1Nominal Nominal Impedance(including matching circuit)

: 50 ohms 2.2Matching Circuit The matching circuit is as Figure 2-2. RF 0 Antena NC NC AddRoom 401, West Tower, Building No.211, Tairan Industry & Trade Park, Chegongmiao, Futian District, Shenzhen City, Guangdong Province, P.R. China Tel0755-66630456 Fax0755-66630458 Emailsunwin_vip@163.com Shenzhen Sunwin Telecommunication Technology Co., LTD. Figure 2-2: Matching circuit 3. Active Measurements Active Measurements Data Total Radiated Power (TRP) and Total Isotropic Sensitivity (TIS) of the handsets with antenna are tested in the antenna chambers . hamber Test Data RX AddRoom 401, West Tower, Building No.211, Tairan Industry & Trade Park, Chegongmiao, Futian District, Shenzhen City, Guangdong Province, P.R. China Tel0755-66630456 Fax0755-66630458 Emailsunwin_vip@163.com Shenzhen Sunwin Telecommunication Technology Co., LTD. TX Frequency:2480MHz 5 City, Guangdong Province, P.R. China Tel0755-66630456 Fax0755-66630458 Emailsunwin_vip@163.com Shenzhen Sunwin Telecommunication Technology Co., LTD. 4 Mechanical Properties AddRoom 401, West Tower, Building No.211, Tairan Industry & Trade Park, Chegongmiao, Futian District, Shenzhen City, Guangdong Province, P.R. China Tel0755-66630456 Fax0755-66630458 Emailsunwin_vip@163.com Shenzhen Sunwin Telecommunication Technology Co., LTD. AddRoom 401, West Tower, Building No.211, Tairan Industry & Trade Park, Chegongmiao, Futian District, Shenzhen City, Guangdong Province, P.R. China Tel0755-66630456 Fax0755-66630458 Emailsunwin_vip@163.com Shenzhen Sunwin Telecommunication Technology Co., LTD. 5. Environmental Characteristic Test Item Test description 1. Low Temperature Temp.: -20 Time: 24 hours 2. High Temperature Temp.: 80 Time: 24 hours 3. Salt Fog 50.1% Nad salt fog PH Value: 6.5-7.2 Temp: 351 Time:24 hours AddRoom 401, West Tower, Building No.211, Tairan Industry & Trade Park, Chegongmiao, Futian District, Shenzhen City, Guangdong Province, P.R. China Tel0755-66630456 Fax0755-66630458 Emailsunwin_vip@163.com

Fuzhou Wanyu Acoustic Technology Co., Ltd C5266091_X10_Ed.2 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject: Request for Confidentiality FCC ID: 2BAFI-A18 To Whom It May Concern, Date: Mar 8, 2023 to the provisions of Sections 0.457 and 0.459 of Commission's rules Pursuant

(47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits ID Label/Location Attestation Statement External Photo s Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info Long-Term Confidentiality No Short-Term Confidentiality NOTE 2 No No No No NOTE 1 NOTE 1 No No No No No No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. 1/1 C5266091_X10_Ed.2 In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Name:

Title: Manager Signature of applicant: lin qiankai Date: Feb 8. 2023 1/1

Model difference declaration letter Differences Description We Fuzhou Wanyu Acoustic Technology Co., Ltd state:

Product Wireless collar clip microphone Model Name A18/AM-W15/W2/M103/T26/WY18/W18/W5/W7/

WY001 The above product with same circuit, PCB layout, electrical parts, materials and wiring structures, the materials of decorative accessories is same, For the product appearance difference, the size is the same, but the color of the product is different Signatory Date: 03-7.2023 Name:

Date: Feb 8. 2023 Title: Manager Signature of applicant: lin qiankai

C5266091_X8_Ed.1 Fuzhou Wanyu Acoustic Technology Co., Ltd Letter of Authorization Company:Fuzhou Wanyu Acoustic Technology Co., Ltd Address: Floor 2, Building 2, No. 56, Guoyang, Shangdian Village, Jingyang Town, Fuqing City, Fujian Province Product Name: Wireless collar clip microphone Model Number: A18/AM-W15/W2/M103/T26/WY18/W18/W5/W7/WY001 FCC Identifier: 2BAFI-A18 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. is allowed to forward all Name:

Date: Feb 8. 2023 Title: Manager Signature of applicant: lin qiankai 1/1

US Agent for Service of Process LETTER OF ATTESTATION TO:

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process:

Company Name: USA MEIHUA TRADING INC FRN: 0033406166 Contact Name: Harley Quinn Address: 5379 Pine Valley Ct Boulder CO 80301 United States Telephone No: 1-312-363-9424 Email: meihua-trading-inc@foxmail.com This letter is to confirm that the US Agent for Service of Process accepts responsibility to act as a local representative on behalf of (Fuzhou Wanyu Acoustic Technology Co., Ltd). The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause 2.911. Applicant:

Company name:Fuzhou Wanyu Acoustic Technology Co., Ltd Product Description: Wireless collar clip microphone Grantee code:GC452820 FCC ID:2BAFI Contact Name:lin giankai Address:Floor 2, Building 2, No. 56, Guoyang, Shangdian Village, Jingyang Town, Fuqing City, Fujian Province Telephone No:13799395941 Email:465611114@qq.com The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause 2.911. lin giankai Harley Quinn a" \yelHUA Tp, Title: Manager Title: eT . Signature Signature Applicants Name: US Agent for Service.of 'Processs Name:

seereereee, Ln Ponkod a E R one) wn 4, 1 MTT aha 1/1 US Authorized Representative Letter Declaration of Appointment as US Authorized Representative To whom it may concern USA MEIHUA TRADING INC (5379 Pine Valley Ct Boulder CO 80301 United States)as the contact representative in the US, has been appointed by Fuzhou Wanyu Acoustic Technology Co., Ltd

(Floor 2, Building 2, No. 56, Guoyang, Shangdian Village, Jingyang Town, Fuqing City, Fujian Province) to cover product categories such as_ Wireless collar clip microphone in the us market as us Representative. US Representative Company : USA MEIHUA TRADING INC Address :5379 Pine wy Ct Boulder CO 80301 United States Date: 2023.03.03: gf SL a3 9 fe:

4, n ms ws od iat Issuer Signature: