Invisible Hearing Aids for Deafness Sound Amplifiers Wireless Headphones Audio Amplifier Speaker Double Chin Face Lifting Device Rapid cooling: After exercising and

Rapid cooling: After exercising and sweating

exquisite and elegant

Model: WT09

Design: Charging Base

Product size:10x30x41cm

Invisible Hearing Aids for Deafness Sound Amplifiers Wireless Headphones Audio Amplifier Speaker Double Chin Face Lifting Device Rapid cooling: After exercising andProduct information: Maximum saturation sound pressure level1153dB Full range sound gain325dB Equivalent input noise level293dB High frequency average1064dB Frequency response range300~4500HZ Total harmonic distortion7%+3% This hearing aid is safe to use, convenient and practical. It can help user hear the outside sound again, regaining confidence. Mini, lightweight and invisible, comfortable to wear. Suitable for the elderly and those people with