Small and Convenient Hearing Aid Aids Best Sound Voice Amplifier Device Behind the Ear S-217
Small and Convenient Hearing Aid Aids Best Sound Voice Amplifier Device Behind the Ear Model:S-217 Hearing aid major features: 1.Max Sound Output: 127±4 dB 2.Max Sound Gain: ≥48 dB±5dB 3.Harmonic Wave Distortion ≤5% 4.Frequency Range: 250~3800 hz 5.Input Noise: ≤30dB 6.Working Voltage: D.C. 3.7V 7.Working Current: ≤4 mA 8.Measurement: 9.Net Weight: 8g(without Battery Rechargeable hearing aid Bluetooth style Hearing aid pictures:...
Rechargeable Analog ITC Sound Voice Amplifier Hearing Aids S-216 Auality Sound Micro Ear Hearing Aid in the ear
Rechargeable Analog ITC Sound Voice Amplifier Hearing Aids S-216 Auality Sound Micro Ear Hearing Aid in the ear Model:S-216 Product performance and parameters: 1.Max Out: ≥120dB 2.Max Gain:≥30dB 3.Average Gain:≥38dB 4.Harmonic Distortion:a)≥10% (Frequency< 1000Hz) b)≤4%(Frequency >1000Hz) 5.Equvi Input Noise:≤30dB. 6.Frequency Range:≥250Hz~3500Hz Product description: 1.this product for charging, do not need to buy batteries and trouble, no...