HE2-52U2 is a portable power pack device with internal Li-ion batteries provides a charging source for you daily used mobile devices such as smart-phones， tablet devices， digital cameras， and other gadgets that can be charged with standard USB 5V power. With HE2-52U2 you can charge your devices on the road at anytime and any place without worrying their battery running low. HE2-52U2 provides total maximum 1.5A output allows most of the mobile device to charge fast and fully. HE5-52U2 has a build-in micro-USB cable， so you can directly charge your device via micro-USB interface.