Mini Apparecchi Acustici Invisibili In Ear Amplificatore Suono Assistenza Vocale Invia Anziani
Could be worn on both left and right ear. Equivalent input noise level: ≤ 29dB+3dB. Output sound pressure level (high-frequency average): 112dB ± 3dB. Full range sound gain (Zui large gain): 35dB ± 5dB.