FCC ID: 2A7JZ-CF430S Sound amplifier

User Manual Teana-CF430SB+

Version: 042022 Please read this user manual thoroughly and completely before using the product. CONTENTS I. IMPORTANT SAFETY INSTRUCTIONS

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. HOW TO USE YOUR DEVICE 1.HOW TO USE HEARING AID

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. 6 2.QUICK GUIDE

. 6 3.HA-Fit APP

. 10 4.BLUETOOTH CONNECTION

. 13 5.CHARGING

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. REPLACEMENT ACCESSORIES

. 18 1. Change earbuds

. 18 2. Replace the sound tube

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. MAINTENANCE AND CLEANING

. 20 1.Daily maintenance

. 20 2.Care and maintenance

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3.Cleaning

. 21 V. HEARING AIDS CARE

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. TROUBLESHOOTING GUIDE

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.TECHNICAL SPECIFICATION

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. DO NOT USE IF ANY OF THE FOLLOWING APPLY TO YOU:

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. MATTERS NEEDING ATTENTION, WARNING AND TIPS

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. FCCWARNINGSTATEMENT

. 28 I. IMPORTANT SAFETY INSTRUCTIONS Read all the information in this instruction manual and any other literature included in the box before using the device. 1. CONTRAINDICATION The device should not be used in the following situations:

- Patients with chronic suppurative otitis media (CSOM),congenital ear atresia, or any type of ear discharge 2. WARNINGS Warning

- Keep small parts (hearing instrument, ear domes, battery or other detachable parts) that can be swallowed out of children's reach. Dropping, immersing in liquid, exposure to strong electromagnetic elds or excessive heat will damage the hearing aids. Remove devices prior to any type of X-ray, MRI, or CT scan. If parts become stuck in the ear canal, seek medical assistance - do not attempt to remove by yourself. 2. Notice Warning

- Do not use at high volume for extended periods of time-ear injury can result.

- If you experience any pain or strong discomfort using the devices, remove and consult a doctor.

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- Do not store your devices in a hot/humid locations. You should never leave your hearing aids near heating appllances or in direct sunlight.

- Do not leave your hearing aids in the car as InsiIde temperatures can reach dangerous levels which could damage the devices.

- Routine maintenance to keep the device clean is required. Ensure that ear domes are free of debris and moisture at all times.

- Avoid shocks or dropping the product.

- Do not store or use the product in environments of high humidity or temperature (such as sauna room), to avoid damage.

- Batteries should be properly recycled and not disposed in the trash.

- Keep the devices away from small children. Injury or damage may result.

- Do not set volume levels too high. Listening with high-output devices for extended periods at high volume levels can cause further hearing damage.

- Do not share your hearing aids with others. Using a hearing aid congured for someone else can result in hearing damage or injury.

- Monitor for any unusual skin reaction. If you notice any allergic reaction (itchiness, swelling, or rash), stop wearing the hearing aids and consult a medical specialist.

- Do not touch the hearing aids to any type magnet or magnetized object. Your hearing aids are delicate electronic instruments and may be damaged by contact with strong magnetic elds.

- Do not attempt to open or repair the devices yourself. Damage can result and will void the warranty.

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. HOW TO USE YOUR DEVICE 1.HOW TO USE HEARING AID 2.2 Volume Adjustment Adjust the volume of the hearing aid through the volume adjustment knob. There are four volume levels. 1 3 5 2 4 6 7 1. Volume control 2. Microphone 3. multi-function button 4. Acoustic tube 5. Charging Point 6. Earplugs 7. Stabilizer Bar 2.QUICK GUIDE 2.1 ON/OFF Long press for about 3 seconds to turn on. Long press for about 3 seconds to turn o the power. The hearing aids enter into hearing aid mode automatically after being turned on. Push up

Increase the volume of the hearing aid;

Push down Decrease the volume of the hearing aid;

2.3 Hearing Mode Change You can cycle through the 3 Hearing Mode by : short press button Hearing Mode Sound you will hear when activated Hearing Mode Change 1 2 3 1 beep ("beep") General Hearing Mode 2 beeps ("beep beep") Noise Reduction Hearing Mode 3 beeps ("beep beep beep") Outdoor Hearing Mode

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2.4 How To Wear It Step 1:

Choose a suitable size ear dome, install in sound tube tail Step 2:

Gently insert the earplug into the ear canal. Step 3:

Place the hearing aid behind the ear. The curve of the sound tube should t comfortably on top of your ear. Step 4:

Put the stabilizer bar into the outer bowl of the ear. 3.HA-Fit APP Please download and install HA-Fit APP rst.

4 2B 4 3.1 HA-Fit app connects to hearing aids 4 Step 1:

Please turn on the hearing aid. Step 2:

Be sure Bluetooth is enabied on your phone. Step 3:

Open the HA-Fit APP. Step 4:

Click the Searching for Devices button.

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After "searching for devices", the HA-Fit APP will automatically connect to the hearing aid, and the successful connection status is shown in the gure.Connected Tian... The devices are controlled by your personal voice. The devices are controlled by your personal voice. Step 4:

Step 5:

Follow all prompt steps to complete your personal hearing evalution. After completing your hearing evalution, click the Auto-

Optimize button and your hearing aids will be optimized based on your hearing score. 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. Disconnected Disconnected Left Tianlai-L Right Tianlai-R Searching for Devices Searching for Devices Sound Control Hearing Evalution Sound Control Hearing Evalution Left Tianlai-L Right Tianlai-R Searching for Devices 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 3.2 Hearing Evalution With the Hearing Hearing Evalution module, you can quickly set up your hearing aids according to your hearing characteristics. 3.2 Sound Control Step 1:

Please put on your hearing aids and turn them on. Step 2:

Please do the evalution in a quiet place. Step 3:

Click the Hearing Evalution button. 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:

Step 1: Click the Sound Control button.

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Step 2:

Enter the sound control interface, you can easily control 4.BLUETOOTH CONNECTION the hearing aids, you can adjust various parameters, volume, program, frequency band, noise reduction... The devices are controlled by your personal voice. Left Tianlai-L Right Tianlai-R Searching for Devices Sound Control Hearing Evalution Home Volume/Mode Frequency Band Others Volume Down Volume Up Mode Change MPO Down MPO Up Left Both Right Start-up level Hearing mode beep sound

(For single beep represent mode 1,For dual beeps represent mode 2 and etc) Volume state Minimum /

maximum volume Sound you will hear when activated Beep 2 beep (beep beep) Volume up / down Short press " +"or "-"button Beep 4.1 To connect via Bluetooth (rst time pairing):

Remove BOTH Left and Right devices (both must be charged)-

from the Charging Base. Please put on your hearing aids and turn them on. Be sure Bluetooth is enabied on your phone. Go to the Bluetooth setting on your phone and select "Pair New Device" (wording on your particular phone may be slightly varied) Search for the Bluetooth identier of your device ("Tianlai")and select it to pair (connect)- this may take up to 2 minutes.

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Be sure to Accept any promots aiven reaardina connecting the device to your phone. There will be a promptconnected, when they connect successfully. Note: the apove paimg onmy neeas o De done one time with your phone. After that, as Iong as your pnone is nearby and Bluetooth is enabled, the hearing aid will automatically reconnect when turn on. Bluetooth DEVICE Tianlai Please keep the distance of your phone and hearing aids within 10 meters when they are connected.Beyond this distance, the sound quality may deteriorate and the connection may be lost. 4.2 Bluetooth Mode Button Operation Single click: Play/Pause the song;

Answer a phone call;End the call;

Quick double clickL: Skip forward to next song Quick double clickR: Skip forward to previous song Note: Bluetooth/Hearing aid functionality switching is automatic. The devices will switch to Bluetooth mode automatically when you are on a phone call or listening to music or watching a video. lf you pauselstop the music or end a call, the devices will autom-

atically enter into hearing aid functionality When disconnected from the phone (Bluetooth OFF), the device will automatically enter into hearing aid functionality. Note: If the bluetooth on your device is not connected to the phone for a long time, it will automatically turn o. Please restart your hearing aid and re-pair with your phone.

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4.3 Bluetooth Disconnect:

5.2 How to charge 1) Plug the small Type-C cable tip into the charging Base. Plug the large USB-A end into a USB-A power source such as a wall charger or your computer. 2) Put the hearing aid in the charging cradle. 3) Hearing aid: When charging, the indicator lights will glow blue. After achieving full charge, the indicator lights will glow green. There are 2 ways to disconnect Bluetooth 1) Turn OFF the hearing aid. Long press the button on the devices for 3 seconds(You will hear

"Power O" in your hearing aid) 3) Turn OFF Bluetooth on your phone. This will immediately disconnect your hearing aids from the phone. (You will hear

"Disconnected" in your hearing aid) In this case, to reconnect, simply turnBluetooth back on in the phone 5.CHARGING 5.1 CHARGING BASE 1. Hearing aid charging indicator 1 2. Charging base charging indicator 3. Charging port to external power supply 2 1 3

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Blue light: Charging Green light: Charging Charging Time2h Rated Working Time14h Bluetooth mode working time 2h bluetooth mode, 1h hearing aid mode after bluetooth mode o

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Note:

When the hearing aid battery power is low , the low battery warning signal will sound once every 1 minute until the battery power is exhausted. Therefore, please charge your hearing aid when you hear the buzzer. When the hearing aid and base is not functioning properly, please check the "troubleshooting table. If none of the solutions work, please contact our after-sales service team. REPLACEMENT ACCESSORIES 1. Change earbuds If the earplugs cannot t your ear canal, there will be beep. So please choose the suitable earplugs that t your ear cannal. 2B 3) Insert the earplug straight and insert it gently.. 4) And then try to pull the earplug lightly to make sure that it will not come o. 2. Replace the sound tube 1) Remove the sound guide by rotating the bottom of the sound tube counterclockwise;

4 4 2B 2 B 2) Choose the required sound tube. 2B 2B 2B 1) Turn the edge parts over. Hold the base part and pull it o. 2) Hold the Sound tube with your hand.

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Please distinguish the right ear and the left ear according to the sign of the sound tube tail (2B). Blue for the left and red for the right. 3) Turn the bottom of the sound tube clockwise to connect the sound tube to the machine. 2.Care and maintenance When not in use, store in a secure area away from small children and pets. Do not place hearing aids or charging base near high-temperature areas such as stoves or direct sunlight. Do not leave the devices in a humid place for a long time,such as bathroom. Take care not to poke the microphone holes with any sharp objects to avoid damage. Do not disassemble or attempt any repairs by yourself. Doing sowill void your warranty. 3.Cleaning 1) Cleaning the ear tips Remove any earwax buildup using the enclosed tool. Wipe clean with a tissue or soft cloth. 2) Cleaning Tool Use a soft cloth or tissue to wipe any moisture, perspiration, or debris from the surface of the tool. Note: Do not use alcohol or other cleaning solvents to clean the hook as this could damage the protective covering. MAINTENANCE AND CLEANING 1.Daily maintenance It is important to keep your devices clean and dry. On a daily basis, wipe them clean using a soft cloth or tissue. To avoid potential damage from excess humidity or perspiration,the use of a drying kit is also recommended.

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V. HEARING AIDS CARE

. TROUBLESHOOTING GUIDE

- Keep your hearing aids clean. Extreme temperatures (heat or cold), moisture, and foreign substances can result in poor performance.

- Use the cleaning brush tool or soft cloth to clean debris from around the buttons, microphones, and charging contacts; inspect the receiver, ear tips, and charging base regularly.

- Never use water. solvents. cleaning uids or oils to clean your hearing aids.

- Charging contacts should always be kept clean and dry.

- Always store your hearing aids in the charging base when not in use or cleaning. Charging Base Care

- Keep your charger clean. Heat, moisture and foreign materials can result in poor performance.

- Using the provided cleaning brush keep the charging ports clear of debris.

- Do not use water, solvents or cleaning uids to clean the charging ports.

- Store your charger in a clean and dry location, i.e. a dresser or shelf rather than the bathroom or kitchen. SYMPTOM POSSIBLE CAUSES SOLUTIONS No Sound Volume too low Device is not charged Microphones are clogged Ear Domes clogged Low battery Voices are low, very weak, or unclear Ear Domes are too loose Earwax in ear dome Hearing has changed Hearing aid cannot connect to your phone, or take a long time to connect Bluetooth connection lncrease volume if volume control available Place charging the hearing aid until the in dicator is lighted in blue color. Clean out any debris from the mic holes Clean out any debris from the ear domes Place the aids into the charging base to charge Choose a suitable size ear dome, wear it correctly. Clean out any debris from the ear domes and receiver area with the cleaning brush Contact your physician to report any sudden drop in hearing 1) Make sure that your headphones are not connected to other devices, and that your device is not connected to other Bluetooth devices.

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Your hearing aid are connected to other phone Bluetooth connection is not stable and causes some interruptions Incorrect orientation Hearing aids whistling in the charger Charger battery depleted Poor contact between hearing aid and charging base Hearing aid reverse After the hearing aid is connected, the hearing aid indicator is not lit 2) Long press the button on the devices for 3 seconds to turn them o. Turn it on again. Turn o Bluetooth on other phone. It will immediately disconnect your hearing aid from the phone.To reconnect yourphone again. Try shortening the distance between your hearing aid and device. Avoid solid barriers in between. Ensure the USB cable is connected to the Charging base plugged into power. The base power status lights will blue to indicate charging. Reposition your hearing aids in their slots, ensuring the contact points are touching the charge points in the base. Reinsert the hearing aid into the charging base Check to see if the hearing aid is reversed Hearing aid failure self-checking table

[Fault self-check]

project Possible Causes Solution Hearing aid has no sound The button time is too short to start Long press the button for 3 seconds, restart Battery fully discharged ILow battery Volume is set too low Ear Domes are too loose Connect the hearing aid to the charging base for charging Connect the hearing aid to the charging base for charging Increase volume if volume control available Hearing aid not inserted correctly into earwear it correctly Indication for low battery Charge hearing aid Hearing aid not inserted correctly into charger Insert hearing aid correctly into charger Charger not connected to power source Connect charger to external power supply Battery fully discharged Wait three hours after placing hearing aid in charger, regardless of LED behavior The voice is very weak and unclear Hearing aid plays notication sound Indicator light on hearing aid does not light up when hearing aid placed in charging inserts

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Possible Causes Solution Frequency Range F1200Hz F24000Hz Noise Level Battery Current Total Distort 32dB NA 3%

Charging base fault self-checking table

[Fault self-check]

project After the hearing aid is connected, the hearing aid charging indicator is not lit Hearing aid indicator lights are dark or dim Charging does not start Poor contact between hearing aid and charging base Hearing aid reverse Reinsert the hearing aid into the charging base Check to see if the hearing aid is reversed Dirty charging contacts Clean the contacts of the hearing aid and the charger Hearing aid not inserted correctly into charger Insert hearing aid correctly into charger

.TECHNICAL SPECIFICATION Max.OSPL90 HF Avg.OSPL90 Max gain HFA Gain 120dB 1094dB 48dB 335dB

. DO NOT USE IF ANY OF THE FOLLOWING APPLY TO YOU:

1) Congenital atresia of external ear or deformity of any part of the 2) Deafness is unstable, and the degree of hearing loss often ear canal uctuates 3) Persistent headaches, dizziness, earaches, tinnitus or other symptoms that are not suitable for adaptation 4) Sudden onset of hearing loss within the past 3 months; rapid progressive deafness; unilateral hearing loss or other acute ear 5) Eusion (secretions/discharge) in the ear and/or frequent disease;

purulence (pus)

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6) Central deafness (central nervous system) or non-organic

. FCC Warning Statement deafness 7) Patients with acute otitis externa and tympanitis 8) Patients with acute and chronic suppurative otitis media (in the period of purulent infection) 9) Patients who are allergic to the materials of this product

. MATTERS NEEDING ATTENTION, WARNING AND TIPS 1. Do not immerse the hearing aid in any liquid. Remove the hearing aid before swimming or bathing. After swimming or washing, wait for the ear canal to dry before wearing the hearing aid. 2. After removing the hearing aid at night, it should be placed in a case with a desiccant if possible, protected from light, high temperature and high humidity environment. 3. The external surfaces of the hearing aid should be kept clean, and earwax in the ear domes should be cleaned out daily 4. When you do not use hearing aids, please charge the product regularly to avoid battery damage; the recommended charging time interval of hearing aids is 28 days Changes or modications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. 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 communi-cations. 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 o 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 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

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FCC ID LABEL:

Width:1cm FCC ID: 2A7JZ-CF430S Product name: Sound amplifier Model name: Teana II CF430S B+

Long:1.5cm Label Location:

< Xiamen Wenatone Medical Technology Co., Ltd. >

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD21046 Subject; Request for Long Term Confidentiality FCC ID: 2A7JZ-CF430S Date: Jun. 29, 2022 To Whom It May Concern, public disclosure indefinitely. Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Sincerely, Signature:

Name: YongQuan Liu Title: Manager

Xiamen Wenatone Medical Technology Co., Ltd. Letter of Authorization Company: Xiamen Wenatone Medical Technology Co., Ltd. Address: 805A, Jianye building,Torch hi-Tech (Xiang An) industrial park, Xiamen, China Product name: Sound amplifier Trade Name: N/A Model name: Teana II CF430S B+

FCC Identifier: 2A7JZ-CF430S We authorize MiCOM LabsInc, 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the above named equipment. Any individual within MiCOM Labs is authorized to act on our behalf and take action on the application. We declare that MiCOM LabsInc, 575 Boulder Court, Pleasanton, California 94566, USA, is allowed to forward all 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 MiCOM Labs on our behalf shall have the same effect as acts of our own. Name: YongQuan Liu Date: Jun. 29, 2022 Title: Manager Signature of applicant: