Sweat Proof
The internal nano-coating technology protects the hearing aids from sweat during outdoor activities, such as walking, jogging, hiking, yoga, traveling, etc. Thermoplastic elastomer (TPE) medical materials are soft, flexible and ultra-lightweight.

Easy to Control
The knob on our hearing aids allows you to easily adjust the volume, and one button controls 4 modes, which can perfectly adapt to different listening environments. It is strongly recommended that you read the instructions carefully and observe the Hearing Assist illustrations carefully before use.

Noise Reduction
Using advanced digital chips, the noise reduction effect is 28% better than the previous generation,
which is currently the best noise reduction effect of hearing aid.
It can restore the real sound to the greatest extent and reduce background noise.

Easy to Use
One-button operation easily adjusts to a suitable mode according to the environment.
Automatic memory, when the power switch is turned OFF, the volume and mode will always retain the same as last used.

Why howling?
If there is a gap between the earbuds and the earholes, the microphone and earbuds will interfere, and in this case a beeping sound will be heard. For example, if the microphone and speaker are too close on the KTV, the same beep sounds.

How to solve howling
Check the size of the earplugs when wearing them . Choose the earbuds that best fit your ear. Insert the earplug firmly into the ear hole to ensure there is no gap.
Before wearing, please turn off the power and reduce the volume.
After wearing, turn on the power, gradually increase the volume from the minimum, and adjust until you can't hear it.

Specifications:
Charger : DC 5V/50mA~lA
Battery: Lithium battery 60mAh
Size: 1.77*1.57*0.39 inch
Wight: About 0.015 Ib
Max sound output: 129±4dB
Sound gain : 38±5dB
Frequency range: 400Hz~3800Hz
Input noise: ≤28dB
Votage: D.C.3.7V
Current: ≤2mA

Package Content:
1 x Hearing Aids
3 x Earplugs