Hearing aid Digital Sound Amplifier for The Elderly Invisible Intelligent Noise Reduction Left and Right Ears

Description

Product Name: Hearing AidPower supply: 1.4V has a relative error of +5%-10%Maximum saturated sound pressure level: 118 (OSPLgo)High frequency average: 109 (OSPL90Full sound gain: 32 (1600HZ)Equivalent input noise level: <;28Total harmonic distortion: 8%Frequency response range: 300-3500