Split body design Pick up automatic boot Bluetooth 5.0 Come with 300mAh charging dock for 12 hours of battery life Communication distance: 10 meters (accessible open space) Double headphones continuous listening time: About 4 hours Headphone standby time: About 150 hours Single earphone battery capacity: 40mAh Headphone charging time: About 1.5 hours Charging box charging time: About 2 hours Single earphone net weight: About 4.1g With the total net weight of the charging box: About 35.4g