ITEM NAME:Portable Behind The Ear Digital Tone Sound Hearing Aids Hearing Amplifier #gib Store Home Promotion Hot Item Add to Fav.Harmonic distortion: ≤ 5%. Strong noise reduction function. 1 X Hearing Aid Set with Box. Exquisite luxuriant appearance. The equivalent input noise: ≤30dB. Maximum sound output: 130 dB ± 5 dB. Sound gain: ≥ 50 dB.
