Portable and small size 4400mAh lithium battery pack for powering cell phones,mp3/4,ipods,iphones and other 5V electronics.

Capacity:  Li-ion 4400mAh/3.7V

Input: Mini USB 5V1A

Output: USB 2.0 5.5V±0.2 700MA

Charge while discharge

Cycle life: 80% capacity remained after 500 cycles

Protection: overcharge,overdischarge,short-circuit

Dimension: 107 x 57 x 16 mm

Weight:135g

Color: white/black