An extra power can help to extend the work time of your mobile phone， thus largely improve convenience. Today this 3500mAh 5V Li-polymer Mobile Phone Extra Power with Leather Case for Sony Xperia Z2 Black is highly recommended to you. With large capacity it can provide extra standby time more than 480h， while the charging time is short due to its high transmitting efficiency. The additional leather case with astand helps to tightly hold the battery and the mobile phone together， and also can preventthem from dust， scratches and shock. Ideal mobile phone accessory for both personal using and gifting! You should not miss it!                                    Features            Large capacity to provide long standby timeCompact size and lightweight adding little extra weight to your mobile phoneHelpful to extend your mobile phone’s working time when you are unable to chargeAdditional protective case is in good quality to reduce shock and prevent dust and scratchesAdditional stand for convenient usePremium material contributes to long service life                                                             Specifications             Capacity     3500 mAh     <br> Battery Type     Li-polymer     <br> The Input Voltage     DC 5V， 500mA    <br> The Output Voltage     DC 5V， 800mA     <br> Charging Time     4.8h     <br> Standby Time     >480h    <br> Talk Time     >6h    <br> Wi-Fi     >10.6h    <br> Audio Play     >36h    <br> Video Play     >10.6h    <br> Dimensions     (5.75 x 3.03 x 0.59)" / (14.6 x 7.7 x 1.5)cm (L x W x H)    <br> Weight     3.14oz / 89g     <br> Color     Black    <br> Applicable Models     Sony Xperia Z2    <br> Product Model     Power Pack     <br>                                                             Package Includes            1 x Extra Power <br>1 x Manual<br>