Hearing aid AMPLIFIERS Digital Volume Control Sound Amplifier V-168 Battery AG13 Mini Adjustable Noise

الوصف

Max Sound Output: 130dB ± 5dBMax Sound Gain: 50dB ± 5dBHarmonic Wave Distortion: ≤5%Frequency Range: 300~4000 hzInput Noise: ≤30 dBBattery: AG13 Button battery (Included)                                                                    Working Voltage: dc1.5V                     Working Current: ≤4mA     Color: As the picture shows   Item Size: 6.75 x 4.35 x 1.9cm                           Package Size: 8.5 x 5.5 x 3.5cm                Net Weight: 7gNote:Keep the ear plug cleanRemove the battery if you don't use it for long time.