Low noise, low distortion;
For people with severe hearing loss;
Product use hearing assistive devices.
The scope of application of gas conduction hearing disorders.
Taboos otitis media or ear suppuration who are disabled.
Maximum saturation sound pressure level of 129dB ± 4dB
Full profile acoustic gain ≥ 38dB
Frequency range of 450Hz ~ 3800Hz
Power Supply Voltage 1.5V
Battery model LR44
Maximum saturation sound pressure level: 129dB ± 4dB
Full sound gain: ≥ 38dB
Harmonic distortion: ≤ 15% f 1000Hz ≤ 10%
Frequency Response: 450Hz ~ 3800Hz
Equivalent Input Noise: ≤ 30 dB
Operating voltage: 1.5V