Wireless Range :10 min an obstacle - free environment Battery Capacity : 43 mAh per earbud Charging Time : Approx 1.5h Talk Time : Approx4h Standby Time : Approx 150h Input : 5V==100 mA Battery Type : Lithium Polymer Wireless Connectivity :Bluetooth 5.0 Bluetooth Profiles :HEP AZDP ASP AVRCP