External Portable Power Case Cover Power Bank Battery Pack for iPhone 5 2200mAh Li-Polymer Black Large capacity of 2200mAh Enjoy your iphone for voice, music,video ,game and business applications with extended stable power. Battery + Protective leather case two-in-one function, perfect solution to the problem of single function of protection cover. With microprocessor it automatically detects, charges and discharges the phone, extends battery life, higher safety. Battery Type: Li-ploymer battery Band: Floureon