China Biometer Invisible Sound Amplifier Deaf Aid ABS Audiphone Hearing Aid, Find details about China Medical Equipment, Healthcare Apparatus from Biometer Invisible Sound Amplifier Deaf Aid ABS Audiphone Hearing Aid
Max.voice gain | 32±5db |
Equivalent input noise level | ≤45db |
Total harmonic wave distortion | ≤18% |
Frequency response range | 200-2850HZ |
Working current | ≤10mA |
Attachment | 1*host, 3*earplug, 1*battery, 1*cleaning brush, 1*earplug cleaning stick, 1*sound adjusting stick, 1*English manual |
Max. saturated sound pressure | ≤120+5db |
Dimensions | 21*15*12mm |
Working voltage | 1.5V |