Left ear color: blue
Material: ABS+Silicone
Battery: 1 x button battery. (up to 600 hours of battery life)
Frequency response range: 300HZ-4500HZ.
Total harmonic distortion: ≤ 7% + 3%.
Features:
-The deaf-aid has high power, open design and clear sound quality, which can reduce the noise caused by chip and restore natural sound.
-The deaf-aid uses a button battery, it can work up to 60 hours and is very durable.
1. Keep the earplugs clean
3. Remove the batteries if not used for a long time
5. Before wearing, please turn the volume to the minimum and gradually increase the volume to avoid the sound suddenly become louder
Package includes：
1x Hearing Aid
1x Instruction Booklet
1x Cleaning Brush
5 X Earplugs
One pair:
2x Matching Batteries
2x Gift Boxes
2x Screwdrivers
