Practical Complexion Hearing Enhancer Hearing-aid Acouophone Ear Amplifier for Better Hearing HKH-211590 track how long you spending

track how long you spending in deep and light sleep to give you a clear picture of your sleep quality

Its excellent sound quality matches refined appearance

Automatic shut-down

Timer Range: 99MIN 59SEC

And it support multi-sport

Practical Complexion Hearing Enhancer Hearing-aid Acouophone Ear Amplifier for Better Hearing HKH-211590 track how long you spendingProduct 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