Mini Size Inner Ear Invisible Hearing Aid Volume Adjustable Hearing Aids Ear Sound Amplifier This mini hearing aid is designed for old people or people with hearing problems, suitable for those people who has hearing loss or patients. Low power consumption, high-fidelity, fine quality chip, invisibility fleshcolor surface will not incongruity in the crowd. User-oriented design make the hearing aid can perfect the ear.
This affordable hearing aids have volume control, can adjust the volume to fit your own needs and preferences. Smaller, simpler, more convenient, more powerful and more stable. Use digit circuit, automatic noise dropping technology, natural sound, provides you a comfortable experience. Non-toxic material equipped with soft silica gel, will not harm your ear. Equipped with 4 different size earplugs, ergonomic design, will not feel pain even after long time wearing. Also provide finer technology in ray of hearing aids, to reduce electromagnetic interferen
About Whistle , you can do this 3 steps to remove it.
1. Choose a suitable earplug to make the product sealed in the ear canal
2. Low down the sound volume
3. When you put into battery , please be quick , to put the product into the ear
Adjust volume to the minimum before wearing.
Choose an earplug of slightly bigger size to avoid whistler.
Increase volume gradually to avoid sudden increase in sound.
Keep the ear plug clean
Remove the battery if you don't use it for long time.
1. Max sound output: 110±5dB
2. Sound gain: ≥30dB
3. Total harmonic wave distortion: ≤10%
4. Frequency range: 300-4000Hz
5. Input noise: ≤40dB
6. Voltage: DC1.5V
7. Current: ≤4mA
8. Color: As pictures
1 x Hearing Aids
2 x AG3 Button Cells
1 x Instruction Manual
1 x Case
2 x Units of earplug of different size