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richsound electronic company
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    BTE hearing aid-F139

    BTE hearing aid-F139

    Quantity Order:
    Payment Method:
    Telegraphic Transfer (T/T)

    Specification :

    Max Sound Output: 130 ± 5 dB
    Max Sound Gain: e50 dB
    Harmonic Wave Distortion: d5‰
    Frequency Range: 300~ 4000 hz
    Input Noise: d30 dB
    Battery: AG13 Button battery
    Max Working Hours with Standard Battery: 70 h
    Working Voltage: D.C. 1.5V
    Working Current: d4 mA
    Measurement: 5.3× 4.4× 1.0 cm
    Net Weight: 9 g ( without Battery)
    Special Function Key: None

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