PRODUCT FEATURES:
Clear Sound Experience
Easy to use 
Lightweight and Comfortable
Rechargeable, charge anywhere and anytime
Suitable for Either Ear
WHAT'S IN THE PACKAGE:
1 Hearing Amplifier
1 Cleaning Brush
1 USB Rechargeable Dock
1 Adapter
1 Charging Case
1 User Guide
3 Ear domes
SPECIFICATION:
Max sound output: 125±4dB
Total harmonic wave distortion: ≤ 10%
Frequency range: 450Hz-4000Hz
Input noise: ≤30dB
Voltage: D.C.3.7V
Current: ≤2mA
FQA:
Q: How to use the hearing amplifier?
A: 1. Insert the earplug into the hearing amplifier.
2. Turn on the hearing amplifier.
3. Put the hearing aid in your ear tightly and move it up and down to insure it on the right position.
Q: The hearing aid can't work/can't hear sound?
A: 1. Power is off, turn on the hearing amplifier.
2. Hearing amplifier is run out of the battery, please charge the hearing amplifier.
3. The earplug blocked by ear wax, please use the cleaning brush to clean the earplug.
Q: How to reduce feedback/whistling for this hearing amplifier?
A: 1. Ensure the earplug fits tightly in your ear canal, make the amplifier is occlusive in the canal.
2. Choose the right size earplug, if it is too loose, replace with a larger earplug.
3. Turn down the volume prior to insert the amplifier into the canal.
Package provide detailed wearing process, and possible problems and corresponding solutions.If you have any questions during use, please feel free to contact us, our team will provide you with professional responses within 12 hours.