Genius ECO-u521

Li-ion, 5200mAh, 19.24Wh, 5V, 2.1A, Black Economical Sleek Universal Power Bank with Safety Protection

There is a way to ease your power struggles. The latest universal power bank from Genius, ECO-u521, provides you the single power source you'll need, without the need to carry or purchase extra spare batteries for all your various devices.

ECO-u521 is compatible with just about every 5V Micro USB device – from most smartphones, tablet, media players, game devices, e-readers and much more. It’s small enough size to fit in your pocket without feeling bulky, so it’s easy to take with you when you’re on the go, and comes in various color options to fit your look.