Bluetooth 5.0 & One-step Pairing：Our Personal Sound Amplifiers for Ears upgraded Bluetooth automatic re-connection technology can simplify the connection process. Bluetooth Automatically Linked When the Personal Sound Amplifiers Boot Up. Greatly improve the transmission speed and providing you with a low-latency listening experience, we can use the Bluetooth function to listen to music, watch TV and answer calls, etc Safe and Comfortable Personal Sound Amplifiers：Personal Sound Amplifiers for Ears are made of the latest materials, the shell is nano-coated, waterproof and sweat-proof; material domes of different sizes are suitable for everyone, and equipped with cleaning tools to extend the service life; very small, very suitable for your ear canal. Adjustable mode：Personal Sound Amplifiers for Ears When you are in different environments, you can switch between "H"mode quiet and ”L“mode noisy programs, which can ensure you have a clear sound in most environments. Double Noise Reduction Function：The newly upgraded smart chip, the noise reduction is 30% higher than usual. It sounds more natural and provides you with a wonderful experience. Excellent sound quality and comfortable listening. Suitable for mild, moderate and . people with , the angle of the earplugs can be adjusted, suitable for left and right ears. Visual Battery Indictor: The charge box has a visual battery indicator with a more user-friendly design. The earphone case can be fully charged in 1.5-2 hours and supports 4 charging cycles. Fully Sound Device support 24+ hours of and 24+ hours of music streaming. After-sales Service：If you encounter problems when using our ear Personal Sound Amplifiers for Ears, please feel free to contact us, we are happy to serve you. Note: How to solve the whistling? Adjust the volume to normal.The volume of thePersonal Sound Amplifiers is turned on to the maximum because of the product test, it needs to be turned down at the beginning use. Selecting an appropriately-sized earplug to keep the ear canal sealed , can effectively prevent the whistling. 2.How to relieve feeling dizzy when wearing thePersonal Sound Amplifiers? The initial wearing of Personal Sound Amplifiers has a process of adaptation. Now wearing in a quiet environment, the wearing time needs to adapt slowly, please refer to MANUAL. 3.Why would hear the noise? The noise is whistling, which is a positive feedback whistling sound generated by the sound from the Personal Sound Amplifiers horn after being leaked and picked up by the microphone. The solution is to cut off the feedback path, reduce the sound leakage, choose an appropriately-sized earplug and wear it seal. 4.Why no sounds can be heard from thePersonal Sound Amplifiers? Check whether the volume is adjusted to suit your situation. Check whether thePersonal Sound Amplifiers has power. Features: Function:Personal Sound Amplifiers, sound amplification,Personal Sound Amplifiers for Ears Material:ABS+metal Max sound out put:129+/- 3dB Sound gain:>= 40dB+/- 5dB Total harmonic wave distortion:<= 10% Frequency range:350-4500MHz Input Noise:<=32dB Voltage:d.c.1.2V Current:<=2mA Full charing about 2 hours OK to Personal Sound Amplifiers recharing about 4 times Personal Sound Amplifiers: Include 45mAH Full charing 4~5 hours Working time 50 hours /pc Total working time 400 hours / 2pcs Package Include: Personal Sound Amplifiers for Earsx2 Earplugsx6 Brushx1 User Maual x1 USB Charging cablex1
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