FCC ID: 2A7JZ-001 Sound amplifier

User Guide In-The-Ear Hearing Amplier Leader CN430S B Hearing Amplier Charging Box Microphone Multi-function button Hearing aidcharging indicator Charging box indicator Earplug Speaker Charging Point Charging contact Accessories 1 2 Please read the rehabilitation plan rst Read the user guide before using 1 Earplugs s\m\l Cleaning brush 2 3 Wax Guard Charging Cable 4 x2 x2 x2 Charging port x1 x2 x1 3 4 Technical Parameter Power On/O Max.OSPL90 HF Avg.OSPL90 Max gain HFA Gain Power ON: Take the device out of thecharging box. Power OFF: Put the device into the charging box. This hearing amplier is a universal ITC and does not dierentiate between left and right ears. 1153dB 1064dB 353dB 313dB Noise Level Frequency Range Battery Current Total Distort 32dB 200-5000Hz NA 3%

How to replace ear tips How to use How to replace the earwax guard At the time of purchase, an M size ear tip is attached. lf it does not tyour ears, the sound is dicult to hear, or you hear beeping, replace theeartips with the supplied S size or L size. 1 1 Turn the umbrella partof the ear tip over 2 Please replace the ear guard once every three months. Do notreuse your ear guard once used.There is a risk of falling o. 1 Pull out the rod and take out the old cerumen lter. Remove the earplug and insert the "disassembly end"

of the cerumen rod into the sound hole. 2 Select the cerumen rod and insert the part with the new cerumen strainer into the sound hole Do not pull the umbrella because it is thin. It maybe damaged. Pinch the hearing aid with your thumb and index nger, and place the earplug side in the ear canal. Rotate the hearing aid to snap it into the ear. 3 Hold the base andpull it o. 3 2 Pull the rod out to make s ure the new cerumen net is installed 4 Hold the body with yourdominant hand. 4 Insert the earplug in line with the hearing aid, then gently pull the earplug to make sure it ts securely. Click the hearing aid button once: increase the volume by one level. Two beeps are heard, which is the highest volume level. Long press the hearing aid button for 3 seconds:

One beep means simulation scene 1 (general mode) . Two beeps mean simulation scene 2 (noise reduction). Three beeps mean simulation scene 3 (outdoors ). The hearing aid has a memory function, and there is no need to repeatedly adjust the volume and mode next time. Low battery reminder Hearing aids have low battery warning signals that sound

"beep, beep" until the hearing aid shuts down. If you hear a prompt tone, please charge it in time. Bluetooth mode Connection guide Step 3: Turn on the Bluetooth function of the phone, 1. The Bluetooth/hearing aid mode can be switched and search for Bluetooth devices to nd the name of Leader, and then click "connect" to Please fully charge the hearing aid rst. complete the connection. Step 1: Make sure the hearing aid is turned on . Bluetooth DEVICE Leader Step 2: Open "Settings" on your mobile device. Settings

(Note: For paired devices, there is no need to re-pair them next time, because they can be automatically connected when turned on.) back and forth freely. Listen to music and incoming calls, and automatically . switch the Bluetooth headset mode during a call. After the music is paused or the call is over, the phone will automatically switch to the hearing aid mode. When disconnected from the mobile phone, it will automatically switch to hearing aid mode. 2. If the hearing aid is not connected to the Bluetooth of the mobile phone for a long time, the Bluetooth function will be automatically turned o.Please restart your hearing aid and re-pair with your phone's Bluetooth. 3. Please keep it within 10 meters during use. Beyond this distance, the sound quality may deteriorate and the connection may be lost. HA-Fit APP 2. Hearing Evalution 3. Hearing Evalution Please download and install HA-Fit APP rst. 1. Connect the APP Step 1: Turn on your hearing aid. Step 2: Turn on Bluetooth. Step 3: Open the HA-Fit APP. Step 4: Click the "Search Device" button. Step 5After "searching for devices", the HA-Fit APP will automatically connect to the hearing aid, and the successful connection status is shown in the gure. With the Hearing Hearing Evalution module, you can quickly set up your hearing aids according to your hearing characteristics. Step 1: Put on your hearing aid and turn it on. Step 2: Please do the assessment in a quiet place. Step 3: Click the "Listening Evaluation" button. Step 4: Follow the prompts to complete your personal listening assessment. Step 5: After completing your hearing evalution, click the Auto-Optimize button and your hearing aids will be optimized based on your hearing score. The HA-Fit app is designed to allow you to conveniently control your hearing aids remotely from your Android or Apple device at hand. HA-Fit app covers key features like changing programs. Step 1: Click the Sound Control button. Step 2: Enter the sound control interface, you can easily control the hearing aids, you can adjust various parameters, volume, program, frequency band, noise reduction... The devices are controlled by your personal voice. The devices are controlled by your personal voice. The devices are controlled by your personal voice. Home Hearing evaluation is not a professional test. lt just a quick and convenient way to set the hearing device according to yout individual hearing situation. The devices are controlled by your personal voice. Home Volume/Mode Frequency Band Others Disconnected Disconnected Left Leader-L Right Leader-R Left Leader-L Right Leader-R Searching for Devices Searching for Devices Searching for Devices Sound Control Hearing Evalution Sound Control Hearing Evalution Sound Control Hearing Evalution Please do the evaluation in a quiet place. Here is not very quiet, but it is ok. Start from your left ear, and then change to right ear to do the evaluation of 10 frequency band. When you hear the sound of signal, please click heard' other wise please click 'unheard' . Start Left Leader-L Right Leader-R Searching for Devices Sound Control Hearing Evalution Volume Down Volume Up Mode Change MPO Down MPO Up Left Both Right How to charge The charging box has the power storage function, put the hearing aid into the charging box, and the charging box will charge the hearing aid. When the hearing aid is charging, the charging indicator of the hearing aid will light up with orange light, and the orange light will be extinguished after it is full. Charging box battery indicator 100%

75%

50%

25%

When the power of the charging box is less than 25%, the indicator light ashes. FCC Statement 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 interfer-

ence to radio or television reception, which can be determined by turning the equipment o and on, the user is encouraged to try to correct the interference by one or more Notes and Tips 1. For the rst use, please remove the lm from the device. Hearing aid charging indicator of the following measures:

L Orange light R L Orange o R

-- Increase the separation between the equipment and

-- Reorient or relocate the receiving antenna. Charging Fully Charging When the hearing aid is fully charged ,it will automatically turn o the light 2. This product is not waterproof, therefore the user must take care to prevent water from entering the product. 3. When not in use for a long time, please put the product in the charging box and charge it once every 1-2 months to avoid damage to the battery. 4. Do not place hearing aids in the hot sun, near furnaces or other heat sources. 5.Avoid contact with chemicals or strong cleaners. receiver.

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

-- Consult the dealer or an experienced radio/TV technician for help. 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. Changes or modications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment FCC ID:2A7JZ-001

Label Sound amplifier Product model leader CN430S B Input voltage Input Current 30mA Input power 5v 0.15W 2A7JZ-001 FCC ID ManufacturerXiamen Wenatone Medical Technology Co., Ltd. Address:805A, Jianye building,Torch hi-Tech (Xiang An) industrial park, Xiamen, Fujian, China Label location

DATE:2023/7/1 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint BlueAsia of Technical Services(Shenzhen) Co.,Ltd./Building C, No. 107, Shihuan Road, Shiyan Sub-District Baoan District, Shenzhen, Guangdong Province, China (Name of Agent company name and address) to act as our agent in the I certify that submitted preparation of documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commissions regulations will have affixed to it a label identical to that submitted for approval with this application. this application for equipment certification. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Xiamen Wenatone Medical Technology Co., Ltd.

/805A, Jianye building,Torch hi-Tech(Xiang An) industrial parkXiamen China(Applicant Name and address)

<Signature>

NameYongQuan Liu TitleGeneral MANAGER CompanyXiamen Wenatone Medical Technology Co., Ltd.

DATE2023/7/1 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: _2A7JZ-001__ Product Name: _Sound amplifier___ Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:

(List here the documents for which you are seeking confidentiality for example ) Schematics Block diagram Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors.

<Signature>

NameYongQuan Liu TitleGeneral MANAGER CompanyXiamen Wenatone Medical Technology Co., Ltd.

Declaration FCC ID:2A7JZ-001 Product Name:Sound amplifier Mode No:leader CN430S B We.declare that the device have left and right earphone,the left and right earphone are electrically identically.

<Signature>

NameYongQuan Liu TitleGeneral MANAGER CompanyXiamen Wenatone Medical Technology Co., Ltd.

Xiamen Wenatone Medical Technology Co., Ltd. Covered Equipment Certification Attestation Letter DATE2023/7/1 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2A7JZ-001 Xiamen Wenatone Medical Technology Co., Ltd. (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not covered equipment.

(the applicant) certifies that, as Xiamen Wenatone Medical Technology Co., Ltd. of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. Signed:

Printed name: YongQuan Liu Title: General MANAGER Company Name: Xiamen Wenatone Medical Technology Co., Ltd. Date: 2023/7/1

Xiamen Wenatone Medical Technology Co., Ltd DATE TO:

Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2A7JZ-001 FRN of applicant: 0032570566 Per section 2.911(d)(7) of the FCC rules, [Xiamen Wenatone Medical Technology Co., Ltd.]

(the applicant) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process:

Company Name: WENATONE LLC FCC Registration Number (FRN): 0034047936 Physical U.S. Company Address: 138 Riverview Avenue, Longmeadow, MAUSA Contact Person: Leo Liu Agent Email Address: :alan@wenatone.com The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed:

Printed name: yongquanliu Agent Signed (if different from Applicant):

Signed:

Title: General MANAGER Company Name: Xiamen Wenatone Medical Technology Co., Ltd. Date: June 9, 2023 Printed name: Leo Liu Signed:

Title: General MANAGER Company Name: WENATONE LLC Date: June 9, 2023

* the applicant must designate a contact located in the United States for purposes of acting as the applicants agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process.