Quickly and effectively solves the low power problem for your devices while on-the-go LED indicator shows the remaining power by pressing the switch This mobile phone battery case can not only charge the mobile phone, but also can protect the phone from scratches and other daily wear and tear Support over-current, over-voltage, over-charged, over-discharged and short circuit protection Soft TPU edge and hard ABS back material, provide your phone comprehensive protection Easy to install and remove, all buttons and controls are easy to use Specifications: Materials: ABS back and TPU frame Marked Capacity: 6500mAh Actual Capacity: 6500mAh Input: 5V 1500mA Output: 5V 1000mA Charging Time: 3.5 hours Charging Power Level: 1 Light = 25 percent , 2 Lights = 50 percent , 3 Lights = 75 percent , 4 Lights = 100 percent Storage or Transportation Temperature: -20 Celsius degree - 50 Celsius degree Working Temperature: 0 Celsius degree - 45 Celsius degree Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.