Mini Hearing Aid Bluetooth Digital Invisible Deaf Sound Amplifier For Adult Adjustable Rechargeable

1.Specification： Material: ABS Color: Black/White Battery: Built-in Lithium Battery Work Time: 10-12hours Charging Time: 90min-2hours Charging Case Charging Time: 90 min Charging Case Working Current: ≦70mA Charging Case Working Voltage: 3.7V Hearing Aid Charging Current: ≦30mA Hearing Aid Charging Voltage: 4.2V Hearing Aid Charging Time(Double machine): 3-4 times High frequency Average OSPL90: 103dB±3dB Total Harmonic Wave Distortion: ≤7% Frequency Range: 400-4000Hz Equivalent Input Noise Level: ≦ 35dB Total Harmonic Distortion: ≦10% Frequency Response Range: 300Hz-3500Hz Rated Power Supply Current Consumption: ≦6mA Maximum OSPL90: ≦120±4dB Reference Test Gain: 23dB ±5dB EQ Input Noise: ≦ 29DB±3 2.Features: 1）This product looks like a BT headset, which can protect your privacy. You don't have to worry about discrimination anymore. 2）Rechargeable design. Comes with a Charging-case for recharging the device anywhere and anytime. 3）Easy to operate and use. 4）High quality material, safe and non-toxic. 5）Mini, lightweight and invisible, comfortable for long time wearing. 6）Intelligent noise reduction and volume adjustable. It can greatly reduce noise, provide clear sound quality. 7）Suitable for the elderly and those people with slight or moderate hearing loss (During 0-55db), helps hearing the outside sound again, regaining confidence. 3.Packing List: 1 pair x hearing aids 1 x Charging Case 1 x USB Charging Cable 1 x English User Manual 1 x Brush 3 x Earplugs