1. Bluetooth Version: 5.0 2. Standby Time: 720H 3. Use Time: 6H 4. Battery Capacity: Headset 25mAh, Charging Compartment 200mAh 5. Automatic Pairing, Connecting When Opening The Pop-Up Window 6. One-Key Operation, Easy To Use 7. The All-Metal Cavity Structure Effectively Isolates Environmental Noise