ITE Hearing Aid Mini hearing aid Hear AIDS

ITE Hearing Aid;in the ear hearing aid ;mini hearing aid; High value hearing aid;hear aids Specification: 1.Max sound output:110±5dB 2.Sound gain:≥ 30dB 3.Total harmonic wave distortion:≤10% 4.Frequency range:300 400Hz 5.Input noise:≤40dB 6.Voltage:d.c1.5V 7.Current:≤4mA usage 1.before using switch the volume to the minimum position. 2.put the ear hook on your ear.plug in the ear plug tightly. 3.turn on the powder,and adjust the sound volume to get clear sound. 4.if you hear the whistling sound,please check whether you have plugged in the ear plug tightly.If it cann't be pluged tightly,please change the other size plug. 5.when you don't use it,please open the battery artridge or take out the battery otherwise it will continue to work. CE : IEC Approval, EMC qualified