Sound Amplifier For Ears Rechargeable, In-ear Digital Sound Amplifier,Pair,Black

8-channel Digital Amplifier- 8 channel is not only a number, its designed based on reliable data and science. KIBVOE has been in this industry for years and accumulated enough experience to develop a mature product. 8 channel is known as the effective channels that human ear can sense. Transient block-up of loud noise can greatly protect and provides better wearing experience. Intelligent Noise Reduction- Inside DSP intelligent environmental noise reduction chip. Our digital amplifier with noise reduction help you enjoy clear sound. When the device is taken out of the charging box, there is a 5-second start-up delay to avoid any squealing, After use, put it directly into the box, and amplifier will automatically shut down. Long-lasting Battery- Using smart charging chip, magnetic charging efficiency is high. The amplifier can be fully charged within 2 hours and can be used for 45 hours. The charging box can be fully charged within 3 hours, and the charging box can be used to charge two earphones 4 times. 3 Professional Modes- Normal Listening Mode,Noise Environment Mode,Tinnitus Masking Mode, to make sure you can enjoy the real world around you, perfect for the people with mild to moderate.(In tinnitus masking mode,the device will produce white noise to cover the tinnitus and help relief the discomfort) After-Sales Service- Our team of professionals is ready to help you with any problem 24/7. If you have problems with our amplifier, please contact us directly. Enjoy a high-quality product with confidence. Specifications Amplifier battery: 45 mah Rechargeable case battery: 400 mah Charging time of amplifier: 2 hours Amplifier working time :45 hours The charging box charges the amplifier for 3~4 times Amplifier weight :3.9g / 0.14oz Charge case weight :34g / 1.19oz Maximum Output: 115dBSPL Average Output: 1064dBSPL Peak Gain : 385dB Average Gain : 325dB Frequency Range: 500Hz~4000Hz DistortionTHD500Hz 0.9% Total Harmonic DistortionTHD800Hz 0.6% Total Harmonic DistortionTHD1600Hz 0.4% Equivalent Input Noise 12dB Operating Power Supply 1.1mA Rated Working Voltage of Amplifier: 3.7V Package List 2 Amplifiers 1 Charging Case 1 Instruction manual 1 Operation Guide 1 Cleaning Brush 1 USB Cable 8 Silicone Ear Domes 10 Dust proof Nets