universal portable power bank 1, 2200mAh 2, for iphone4s port 3,CE,ROHS,FCC 4,warranty: 1 ... year 2200 mAh Universal Portable Power Bank for Iphone4s1. Li-Polymer battery pack with high safety ... ensure longer device life3. Wider range of output voltages for different electronics 4. Support charging and discharging in the ... Lower static power 2200 mAh Universal Portable Power Bank for Iphone4s