Ultra Low Power + Type C Data Transfer/Charging Interface; Be able to recharged by 5V/2A large current or ordinary computer USB port, allow while charging, very convenient and handy; Type C charging interface, after every recharge of 2 hours, the device can be used continuously for a full day or standby more than two months. We offer 1 year warranty with 30 days worry-free return, so 100% satisfaction and zero hassle returns guaranteed. Please don't hesitate to contact us when you use the item.