Practical Complexion Hearing Enhancer Hearing-aid Acouophone Ear Amplifier for Better Hearing HKH-211590 AU Plug Type: QC 3

AU Plug Type: QC 3

first need to update the Firmware upgrade of APP to version 2

Automatic shut-down

Material: Nylon

Frequency: 2

Practical Complexion Hearing Enhancer Hearing-aid Acouophone Ear Amplifier for Better Hearing HKH-211590 AU Plug Type: QC 3Product Features: Complexion hearing aid for better hearing This voice sound amplifier helps people with hearing impaired problem to hear sound and voice as normal people It fits right behind your ear, adjust to either ear Help you hear the sound clearly and loudly, whether indoors or outdoors Comes with 5 replacement earphone caps, easy for you to use Powered by 1 x AG13 button battery (battery included) Size: 40 x 34 x 10 mm 1. 57 x 1. 34 x 0. 39