Main Features: Premium material with exquisite workmanship, high-end look An emergency backup battery used for charging your phone anytime and anywhere Can also be a protective case for your phone, with precise cutouts for unhindered operation Innovative 3 in 1 design case. not only a case, also a powerbank 3500-4000mAh large battery capacity as a great backup power pack. Fast recharging speed for possible emergance use. Portable, convenient, easy to use, high capacity. Features: 6 Colors : Blue,Silver, Black,Red,Gold,Rose gold 3500mAh(for iPhone 6 Plus/6s plus 5.5'') / 3500mAh(for iPhone 6/6s 4.7'') 4000mAh(for iPhone 7 Plus 5.5'') / 4000mAh(for iphone 7 4.7") Package Include: 1 x Backup Battery Charger Case