Model ID:T13 Pro Specifications: Bluetooth version: V5.1 Support protocol: HSP, HFP, A2DP, AVRCP Battery capacity: 50MAH Charging bin capacity: 300MAH Standby time: 300h Product color black,blue,white Features: Talk time: 9H Music duration: 8H Charging time: 1.5H Standby time: 300H Best call distance <1M Battery of Earbuds: 35mAh*2 Battery of Charging Case: 300mAh Waterproof Rate: IPX6 Game Low Latency ASAP Charging 10 Mins Charge = 180 Mins Playback Package include: 1*T13Pro 1*USB charging cable, 1*User manual