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WK-520 Sound Amplifier Hearing Aid,Analog Hearing Aid
- Maximum saturation HRTFS 129dB + 4dB.
- Full file 50dB + sound gain: 5dB
- Harmonic distortion: more than 5%
- Frequency response: a 450 ~ 3,500 hz
- Equivalent input noise: more than 30 dB
- With standard battery: A05 button batteries
- Working voltage: D.C. 1.5 V
- The working current: more than 4 mA
Sound Amplifier Hearing Aid WK-520
Specification
Maximum saturation HRTFS 129dB + 4dB.
Full file 50dB + sound gain: 5dB
Harmonic distortion: more than 5%
Frequency response: a 450 ~ 3,500 hz
Equivalent input noise: more than 30 dB
With standard battery: A05 button batteries
Working voltage: D.C. 1.5 V
The working current: more than 4 mA
Specification
Maximum saturation HRTFS 129dB + 4dB.
Full file 50dB + sound gain: 5dB
Harmonic distortion: more than 5%
Frequency response: a 450 ~ 3,500 hz
Equivalent input noise: more than 30 dB
With standard battery: A05 button batteries
Working voltage: D.C. 1.5 V
The working current: more than 4 mA
Tag:BTE Hearing Aid