Product Feature: -No Chin Design: It gets rid of the long chin design and removes the heavy and massive grip feeling,so you can hold it with only one hand easily. -Three Times Capacities is Upgraded: Three capacities is upgraded so that the high-capacity can be used for a long time for mobile phone. -Magnetic Suction Function: The built-in magnetic iron is suitable for any desktop and car-mounted magnet bracket. -Plug and Play: 1>Press and hold the button for three seconds on the back of the back clip to switch on the back clip-type power supply to supply power for the mobile phone 2>Connect the cable to the mobile phone and then the backpack power bank and mobile phone can be charged at the same time. -Data Transmission: Connect the back clip-type power supply with the computer through the data cable,and you can achieve the data transmission function without disassembling the mobile phone. Battery Capacity: Power Bank Case For iPhone 6 Plus 6s Plus 7Plus (5.5") 3650mAh Package Contents: 1 x External Battery Charger Back Case