A39 TWS Hearing Aids Earphone Stereo Sound ENC Noise Reduction Touch Control Rechargeable Intelligent Sound Amplifier Ad

Features ● High quality Stereo SoundHigh quality sound really restore stereo sound clear and delicate sound output accurately restore sound ● Built in Digital Noise Reduction ChipProcess audio information better and faster filter out ambient noise and ensure your every conversation is heard clearly Filter out environmental nosie and enjoy clear and transparent sound qulaity It is more comfortable during using ● Long Using TimeThe hearing aid only needs to be charged for 1 5H and it can be used for 15H allowing you to forget about the anxiety of battery life ● Touch ControlTouch can be seen and touched precise operation with fingertips instant trigger use earphones to control everything ● Light PortableNatural and non sense comfortable to wear so that you can enjoy it whether it is sports or entertainment Specifications GeneralSpecificationModelA39ColorBlack WhiteWearing TypeIn earFrequency Response300Hz 3500kHzMaximum OSPL90≦120±4dBHigh Frequency Average OSPL90103dB±4dBTotal Harmonic Wave Distortion≤7 Input Noise≦ 29DB±3Equivalent Input Noise Level≦ 35dBTotal Harmonic Distortion≦10 Battery ChargingBattery CapacityEarphone 35mAhCharging Case 300mAhWorking Time10 12hCharging Time1 5hHearing Aid Charging Current≦30mAHearing Aid Charging Voltage4 2VHearing Aid Charging Times Double Machine 3 4 TimesSizeWeightProduct Weight0 0800kgPackage Weight0 1350kgProduct Size120 45 20mmPackage Size165 65 30mmPackage list2 Earphones1 Charging Case6 Earbuds1 Brush1 USB