Upgraded hearing aid with noise reduction function, ultra-long battery life, automatic voice recognition, high-quality sound quality, suitable for the elderly, digital chip amplifier, no screaming hearing aid device (1 pair)

Technical parameters

Maximum OSPL90: ≤120dB+3dB

Average output sound pressure level: 112dB±4dB

Full sound gain: 38dB±2dB

Equivalent input noise level: ≤32dB+2dB

Frequency response range: 300hz-8000hz

Total harmonic distortion: ≤5%

Built-in lithium battery: 55mAh

Single use time: 48 hours

1 pair of hearing aids

Recommendations

1. First-time hearing aid users should choose low-frequency mode and adjust to the most appropriate volume in the first or second week to adapt to the habit of wearing hearing aids.

2. Do not wear it for too long every day, take it off and rest every 30 minutes.

3. After the adaptation period, try switching modes or wearing the device while talking to people, and continue to try in different scenarios until you find the most comfortable experience.

Questions & Answers

1. Why is there no sound when wearing it?

a) Check if the volume is suitable for your hearing.

b) Check if the hearing aid has power.

c) Check if there is earwax in the ear canal.

2. Why is there a whistling sound (sharp sound)?

A whistling sound (harsh sound) is a sign that the hearing aid is not worn correctly. If the hearing aid and ear canal do not match, the sound emitted by the receiver will be picked up by the microphone again, forming a loop, which will be continuously amplified and produce a whistling sound.

Solution: Please choose the appropriate earplug according to the size of the ear canal and make sure that the earplug fits the ear tightly.

3. How to care for hearing aids?

a) Keep hearing aids away from heat and dust.

b) Clean hearing aids according to the instructions. Earwax and ear fluid can damage hearing aids.

c) Avoid using hairspray or other hair care products when wearing hearing aids.

d) Turn off hearing aids when not in use.

4. To better care for your device, please pay attention to the following 4 important reasons for hearing aid damage:

a) Failure to clean hearing aids or improper cleaning methods. b

) Dropping your hearing aid (e.g., from any height onto a hard surface) can damage it. c

) Improper storage - storing your hearing aid in a humid place like a bathroom or a hot place like a car. d

) Wearing your device while showering, swimming, or blow-drying your hair Using hairspray and other aerosol products may expose your hearing aid to moisture, heat, and substances that can clog the microphone and receiver, causing the hearing aid to stop working.

Note: When you first open your hearing aid and charging case, charge them for at least 10-12 hours.

Tips:

1. USB rechargeable hearing aids do not require frequent battery replacement.

2. Please choose earplugs that fit the ear canal, as the gap will cause noise.

3. Please use the correct wearing method to ensure that the hearing aid fits tightly with the ear canal to avoid sound feedback and howling.

4. During use, do not touch the small speaker used for reception with your hands, otherwise it will cause noise.

5. Noise is inevitable when using hearing aids for the first time.