Features:Bluetooth 5.1 has strong performance, greatly improves transmission distance, enhances signal stability and anti-interference ability, and reduces standby power consumption.High definition LED digital power display shows the remaining power of charging bin at a glance. The headset is taken out from the charging compartment, and the phone is automatically switched on and matched.Magnetic induction storage bin, no pressure press, easy to open the door, greatly increase the use experience.The large capacity charging chamber can charge the earphone about 40 times under full charge. HiFi high fidelity sound effect, dynamic unit design, good audio analysis, no distortion of details, excellent listening experience.IPX7 waterproof and sweat-proof, multi process design head body, effectively prevent sweat from damaging components.Specifications:Model：M18Noise reduction version: cvc8.0Working distance: within 10mEarphone capacity: 50mah (each)Charging box capacity: 2000mAhAuto power on: supportAutomatic matching: supportEndurance time: about 220 hours in total (to be used with charging bin)Talk time: about 180 hours in total (to be used with charging bin)Headset charging: about 40 times Input current of charging bin: 5A 1AControl mode: touch operationColor：BlackPackage Includes:2*Earphone，1*Charging Box，1*USB Cable，1*User Manual