Rechargeable Bluetooth APP intelligent noise reduction

Shell technology :  ABS

Power supply mode :  USB

Rated voltage :  3.7V

Color :  Grey

Specifications :  Left ear, right ear, paired

Is there a built-in battery :  Yes

Battery life :  over 12 hours

Material grade :  Non food grade

Hearing aid category :  Ear back type, Open ear back type

Product Name :  Hearing Aid, Assistive Hearing Aid, Sound Amplifier, Hearing Aid

Channel :  10 channels