1. Material: ABS
2. Function: hearing aid
3. Weight: about 10g
4. Power supply mode: 2 x A675/AG13 zinc-air battery (built-in product)
5. Working time: 600 hours
6. Only supports people within 80 decibels

Features:
1. Digital chip, long-lasting battery life
2. HD sound quality, intelligent noise reduction
3. One-key operation, easy to operate
4. Medical-grade silicone ear hooks are soft to the touch and comfortable to wear
5. Comfortable to wear, light and clear sound quality

Installation steps and methods
1. According to the size of the ear hole, choose earplugs that suit you
2. Open the battery compartment
3. Put in the battery
4. Rotate the connection port to adjust the suitable angle
5. Turn off the hearing aid switch and turn down the volume
6. Put the hearing aid into the second channel and adjust it
7. Turn on the switch and adjust the suitable volume
8. Turn off the power before accessing the hearing aid

Packing list:
Cleaning brush x 1
Packing box x 1
Manual x 1
Warranty card x 1
Shockproof box x 1
Zinc air battery x 2
Earplugs x 4