Rechargeable mini Hearing Amplifier Digital Invisible Hearing Aids Mini Protable Intelligent Detecti
Maximum sound pressure level ≤118±3High frequency average: 103±4Full range sound gain 30±5Frequency response range 200Hz-4000HzInput noise level≤30dBTotal harmonic distortion≤10%PACKAGE CONTENT:1 X Charging Case2 X Hearing Aids (Left Right)1 X USB Charge Cable3X Ear Domes(S/M/L)1 X Cleaning Brush1 X User Manual1 X Quick Start Guide