China Biometer Invisible Ear Sound Emplifier in-The-Ear Micro Hearing Aid, Find details about China Medical Equipment, Healthcare Apparatus from Biometer Invisible Ear Sound Emplifier in-The-Ear Micro Hearing Aid
Use Steps
Max.voice gain | 40±5db |
Equivalent input noise level | ≤46db |
Total harmonic wave distortion | ≤50% |
Frequency response range | 200-3000HZ |
Battery | DC 1.5V (1*AG3) |
Attachment | 1*host,4*earplug,2*battery,1*cleaning brush,1*English manual |
Max. saturated sound pressure | ≤125+5db |
Dimensions | 19*14.5*25mm |