OKARA WB-171, Руководство пользователя

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The device:
The Okara Rechargeable BTE
Personal Sound Amplifier, a hearing device of
the personal sound amplification products
(PSAPs) classified by
U.S. Food & Drug Administration
Model number: WB-171
TECHNICAL DATA (based on the ANSI S3.22-2009 test procedures):
Battery:
1.2V Ni-MH, rechargeable
Battery current drain:
6mA
Equivalent input noise:
<50.0dB
Frequency range:
200-3000Hz
Frequency response :
100dB at 1KHz
Saturation output
(SSPL90):
133.0dB
Average saturation
output :
116.0dB
Reference test gain:
33.0dB
Total harmonic
distortion:
<3.0%