COLEMETER® Super Mini In the Ear Hearing Aid Aids Ear Amplifying Aid Adjustable Tone for partially deaf

Description

Specification: Max sound output: 110±5dB Sound gain: more than 30dB Total harmonic wave distortion: not more than 10% Frequency range: 300 - 4000Hz Input noise: not more than 40dB Voltage: DC 1.5V Current: not more than 4mA Battery type: 2 x AG3 cell batteries (included) 4 different sized ear covers Package include: 1 X Hearing aid 4 X Cover 2 X AG3 Batteries 1 X English user manual 1 X Hard package box