What you see is a functional and excellent Backup Battery and Leather Case for Samsung Galaxy S4. It features unique， fashionable and high-class sliding design. To charge the portable battery， simply plug in the USB contactor into the portable battery. With slim and lightweight design， it is portable to carry. Besides， it is also a good leather case to protect your phone from scratches and other minor damages. A perfect emergency backup when the internal battery of your device is drained on the go. This battery and case is ideal for long distance travel or business trip.                                    Features            Functional， it is not only a backup battery but also a leather caseLightweight size， portable to carrySimple to use for good designSupply instant power to charge your device anytime， anywhereIdeal for long distance travel or business trip                                                            Specifications             Dimensions     5.75 x 2.95 x 0.59" / 14.6 x 7.5 x 1.5 cm (L x W x H)    <br> Weight     4.37 oz / 124 g    <br> Color     Black    <br> Capacity     3200mA    <br> Output Voltage     5V    <br> Output Current     0.5A    <br> Input Voltage     5V    <br> Input Current     0.5A    <br> Charging Time     About 5 hours    <br> Compatible with     Samsung Galaxy S4     <br>                                                             Package Includes            1 x Backup Battery<br>