Product details of Bluetooth chip - AC6983D Bluetooth version - V5.1 Transmission distance - 10M Speaker - F10 real copper Earphones battery - 30mah Charging case battery - 200mah with protective board Playing time - Battery Life - 3 - 5 Hours. Charging interface - TYPE-C Standby time - 60 days+ Playing format - L2CAP/A2DP1.2(AVCTP1.3/AVDTP Product name : Inpods 13 pro | Color classification : white | version : 5.0 | Headphone battery capacity : 300mah | Bottom battery capacity : 220mah | Talk time about 4 hours | Play time about 4 hours | distance 10 meters | Control method touch control Welcome | 2*wireless earphone , 1*charging case,1*charging cable for case, 1*instruction , 1*packaging box