Come and see our amazing products. This well- deigned power bank can be the next best seller! You can ensure that you are not left stranded with a dead smartphone with the help of this power bank. It is your backup power source that you can carry around wherever you go. Rechargeable Lithium-ion battery. Input DC 5V/1mA; Output DC 5V/1mA; Capacity: 4000mAh. Charge time differs by device. Pls confirm with us about the packing info, stock status and exact production time before placing your orders.