One charger for at home or on the go, this 6700mAh power bank comes with a built-in dual USB wall charger. While charging your device at home, the power bank is charged as well. The upgraded 6700mAh power bank gives smartphones more than one full charge. Features a high 3A output current with two charging ports that will enable you to charge two devices at full speed. Also charges tablets as well and just as fast! It is a perfect premium promo gift that has a huge imprint area on both sides to give your client's brand thousands of impressions over its life cycle. Deliver premium images with the superb build quality of RAVPower. Super-Handy 2-in-1 Charger Dual port charging plug with integrated power bank charges your devices at home and on the go.