New BN-802 5V500mAh Charging Bone Conduction Headphones Hearing Aid Black

Features： 1. Powered by the included micro USB port. 2. Ergonomic design, easy to wear, close to the ears. 3. Both parties can answer the voice and adjust the volume separately. 4. Noise reduction and echo cancellation technology ensure clear sound quality. 5. Improve traditional hearing aids to be more comfortable and healthy. The best gift for hearing difficulties. Specifications： Frequency range： 20~20kHz Microphone sensitivity： -54+-2dB Working time： 12 hours Standby time： 180 days Charging time： 3 hours Input： DC 5V, Max500mA Weight： 354g Battery： Lithium-ion battery capacity 3.7V 350mAh Package Size： Approx. 20*16*5cm7.87*6.3*1.97in Package List： 1 * Bone Conduction Headphones 1 * Micro-USB Cable 1 * o Cable 1 * User Manual Note： Do not use it on rainystormy days. When using for the first time, fully charge the bone conduction headphones. Support for simultaneous use and charging of headphones, LED lights remain red. The standard charging time is 3 hours. Please do not charge within 24 hours. Otherwise it will affect battery life.