True Wireless Stereo(TWS)
Compliant with bluetooth 2.1+4.2 dual mode specification
Chip: WindTunnel WT200, Low power consumption

Battery Capacity: 65mAh for each piece
Built-in Lithium polymer battery
Playing Time: 6 hours for single unit playing, 3.5 hours for one set playing together
Standby Time: 100 hours for single unit.                                               Charing Time:1.5 hours                                                                                                                                                                                                                   
Accessories: User manual, charging cable     
HFP, HSP and AVRCP support