Hearing Aid . Rechargeable, With Bluetooth Noise Reduction

Rechargeable hearing aids bte hearing aids material hearing aid host: abs earplugs: silica gel max-ospl90 ≤129db+3db hfa-sspl90 120db±4db peak gain 40db hfa full-on gain 38db frequency range 500hz~3200hz thd at 500hz: 3% 800hz: 3% 1600hz: 1% eq. input noise level 28db battery current drain 2.5ma battery size built-in lithium battery working time 4~6hours working time 80 hours certifications rohs fcc iso13485 msds size 47×38×9 mm color beige/blue accessories hearing device:1 earplugs:5 cleaning brush:1 charging line:1 charging head:1 instructions:1 storage box:1 advantage 1)low power consumption, and it can last 80 hours after charging 2)four listening modes features 1)o-n-h switch,rechargeable 2)low power consumption, and it can last 80 hours after charging 3)four listening modes 4)low power reminder