Features:
The latest developed Lithium battery technology is now available in an excellent inexpensive hearing aid that is both affordable and superior to hearing aids commonly available.
This is a brand new revolutionary rechargeable in the ear hearing aid system.
You no longer have to pay the price to replace expensive hearing aid batteries again & again....your hearing aid can be recharged over and over again at virtually no cost.
This is a truly green hearing aid..... which means no batteries end up in the trash... no more trips to the store to buy more..... no more running out of batteries for your hearing aid.

Specifications:
Rechargeable Hearing aid
Max Sound Output:129±4 dB
Max Sound Gain: 50dB ± 5dB
Harmonic Wave Distortion: ≤5%
Frequency Range: 450~3500hz
Input Noise: ≤30 dB
Battery: Lithium Battery
Working Voltage: dc 3.7V
Working Current: ≤3mA
Color: As the picture shows
Item Size: 6.6 x 1.3 x 1.3cm
Package Size: 15.3 x 9.6 x 3.8cm
Net Weight: 26g

Please don't use the computer charge.
Please don't charge more than 6hours.

Package included:
1 x A-60 Hearing aid
4 x Earplug (different sizes)
1 x EU Plug Charger (110-240v.)
1 x User manual

Note:
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.
If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs , make sure no air leakage.
Keep the ear plug clean
Remove the battery if you don't use it for long time.