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UPH XM-909 Hearing Aid
This product is for the air conduct audition obstacle patient to paise the audition.
Main Performance Index:
- Max. saturation sound output: 133 ±4dB
- Max. sound gain: 48 ±5dB (1000Hz)
- Harmonic distortion:<10%
- Equivalent input noise: <32dB
- Frequency response scope: 300~4500Hz
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