China Biometer Hearing Amplifier Deaf Assist Multi-Channel Digital Hearing Aid, Find details about China Medical Equipment, Healthcare Apparatus from Biometer Hearing Amplifier Deaf Assist Multi-Channel Digital Hearing Aid
Product name | Multi-channel digital hearing aid | Model | ZTQ-CK-D8 |
Number of channels | 4 | Power supply | Lithium battery 3.7V B |
Battery capacity | 50mAh | Rated power supply current consumption | 1.7mA, tolerance 120% |
Dimensions | 50.4x 18x10mm | Weight | 8g |
Maximum saturation sound output | 125dB, tolerance: ≤+3db | High frequency average | 114dB, tolerance ±4dB |
Full-on Acoustic gain | 38dB, tolerance ±5dB | Equivalent input noise level | 17dB, tolerance ≤+ 3dB |
Total harmonic distortion (THD) | ≤5%, tolerance : ≤+3%. | Frequency response range | 200Hz~4000Hz |
Normal working conditions | Ambient temperature 5ºC~40ºC, relative humidity 15~90%, atmospheric pressure 70kPa~106kPa | Storage | Ambient temperature -25ºC~ 70ºC, relative humidity ≤93 % |