China Biometer in-The-Ear Sound Amplifier Invisible Audiphone Mini Hearing Aid, Find details about China Medical Equipment, Healthcare Apparatus from Biometer in-The-Ear Sound Amplifier Invisible Audiphone Mini Hearing Aid
Max.voice gain | 30±5db |
Equivalent input noise level | ≤40db |
Total harmonic wave distortion | ≤40% |
Frequency response range | 200-4000HZ |
Battery | Rechargeable |
Attachment | 1*host, 4*earplug, 1*adapter (Europe or US), 1*data line, 1*English manual |
Max. saturated sound pressure | ≤120+5db |
Dimensions | 19*21*13mm |
Working Voltage | DC1.2V |
Working Current | ≤10mA |