Hearing Aids Amplifier +rechargeable box Digital Invisible Hearing Aids Automatic Hearing protection
Max gain:27dB士5dBMax. OSPL90 :≤117dB+3dBTotal Harmonic distortion :3%Charging time:2 hoursTotal working hour:36h (with charging base)Dimensions of device:19.3*14.4*11.1 mmWeight:≈2.7g FeatureIntelligent Detection-Equipped with smart chips.It will turn on intelligently when placing the aids in your ear canal, and turn off automatically once it is removed. This new ear detection technology also could resolve the howling in your ear. Charging protection-Once the battery temperature reaches 40°C,it will be cut off automatically.Portable Charging Case-The hearing aids just needs 2 hours full charge, the charging case support charge 3 timesLight Weight-The weight of hearing aids is about 3g,so it is comfortable for your ear.With up to 190°turn on adjustment knob,easy to adjust the volum u need.Package list1 pairs hearing amplifier3 pairs different size earplugs1* charing case1* cleaning brush1* usb cable1* manual