product information:
Material: Paint
Specification: black
Health Products Product Name: Amplifier

Maximum saturation sound pressure level: ≤129dB+3dB
Output sound pressure level (high frequency average): 120dB ± 4dB
Full range sound gain (high frequency average value): 40dB ± 5dB
The frequency response range is not narrower than: 450Hz ~ 3000Hz
The maximum actual measured value of total harmonic distortion should not exceed: 109
The actual measured value of equivalent input noise level should be: ≤32dB

packing list:
Paint Hearing Aid x1