ITEM NAME:Hearing Aid Aids ITE Best Sound Amplifier Adjustable Tone Stealth Invisible LJAU.Suitable for severe hearing loss people. 1 x Hearing Aid. Harmonic Distortion: ≤18%(450≤F≤5000). Equivalent Input Noise: ≤ 30dB. Maximum Saturation Sound Pressure: 129dB ± 4dB. 1 x User Instructional Brochure.
