USB Reachargeable heaing aid USB rechargeable deaf aid USD Rechargeable audiphone

Description

KF***9 USB Rechargeable Behind the ear hearing aid
Feature:
CE certificate: *3/*2/EEC, ISO ****5:***6
1, Save Money: Don\'t need often buy the batteries for hearing aid, Batteries Warrant: more *8 months.
2, More Convenient: Use a USB interface, Can connect the power bank, and computer, Rechargeable anytime and anywhere.
3, Latest IC circuit System: The sound is more clear, The noise is smaller,
4, Sound gain: The crest value is bigger, More than *0dB.
5, Worldwild universal USB cable and adapters: ******0V, Include Asia, Europe, Middle East, Africa, America, etc.
Technical Parameter:
1, Max sound output:**2±3dB
2, Sound gain:*2±5dB
3, Total harmonic wave Distortion:≤***0%
4, Input noise:≤*6dB
5, Current:≤3mA,
6, Voltage: DC 3.7V(Lithium Battery),
7, Battery Warrant:*8 months,
8, USB cable and Adapters, ******0V,