Pocket Hearing aidMax Sound Output: 129±5 dBMax Sound Gain: 55dB ± 5dBHarmonic Wave Distortion: ≤5%Frequency Range: 450~3500 hzInput Noise: ≤30 dBWorking Voltage: dc1.5VWorking Current: ≤4mAColor: As the picture showsItem Size: 6.6 x 4.3 x 1.6cmPackage Size: 8.5 x 12 x 3.3cmNet Weight: 29gPackage included:1 x F-16 Hearing aid4 x Earplug (different sizes)1 x User manual1 x BoxNote: no battery
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