Invisible Bluetooth Digital Hearing Aid For AdultsAdjustable Deaf Sound Amplifier Rechargeable

1.Specification：Material: ABSColor: Black/WhiteBattery: Built-in Lithium BatteryWork Time: 10-12hoursCharging Time: 90min-2hoursCharging Case Charging Time: 90 minCharging Case Working Current: ≦70mACharging Case Working Voltage: 3.7VHearing Aid Charging Current: ≦30mAHearing Aid Charging Voltage: 4.2VHearing Aid Charging Time(Double machine): 3-4 timesHigh frequency Average OSPL90: 103dB±3dBTotal Harmonic Wave Distortion: ≤7%Frequency Range: 400-4000HzEquivalent Input Noise Level: ≦ 35dBTotal Harmonic Distortion: ≦10%Frequency Response Range: 300Hz-3500HzRated Power Supply Current Consumption: ≦6mAMaximum OSPL90: ≦120±4dBReference Test Gain: 23dB ±5dBEQ Input Noise: ≦ 29DB±32.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 aids1 x Charging Case1 x USB Charging Cable1 x English User Manual1 x Brush3 x Earplugs