This Samsung N7100 3200mAh Back Clip Mobile Power Charger is an innovative battery case for cell phone， it is made up of a smart slim-fit design because nobody wants to have a bulky case on their cell phone all the time. It has a minimal device and lightweight protective case that can stay on the cell phone at all times and an optional snap-on extended battery pack that can double battery life for cell phone when used. The protective case portion of the slim fit snap-on case fits snugly around your cell phone. It is perfect for long plane flights， road trips， or whenever you need to charge your mobile devices wherever you are.                                    Features             With an innovative detachable design<br> Easily fit into your bag to provide instant power<br> Charge your devices anytime， anywhere<br> Extend inner battery life<br> Multifunctional， it is as a charger and an protective case<br>                                                            Specifications             Capacity     3200mAh    <br> Output Voltage     5V    <br> Output Current     0.5A    <br> Input Voltage     5V    <br> Input Current     0.5A    <br> Weight     9.06oz / 257g    <br> Charging Time     8H    <br> Dimensions     6.43 x 3.29 x 0.69" / 16.35 x 8.35 x 1.75cm(L x W x H)    <br> Color     White     <br>                                                             Package Includes            1 x Back ClipPower Bank<br>