TWS WK BT BD800 Wireless Headset Magnetic storage, TWS(True Wireless Stereo) Bluetooth wirless connection The packing box can charge the earphone three times which has 250mAh capacity Mini storage & charging box: Combine with the headset, easy to carry. Built-in charging contacts, place the headset to charge. Increase 12 hours battery life of headset: Built-in high-capacity battery, headset can be fully charged 5 times, meet needs of traveling and playing outside.
Bluetooth Version: V4.2
Battery:50mAh/3.7V(rechargable lithium battery)