... 102(L)mm G.W85 gCharge InterfaceMicro USB/Mini USB/DC2.0Discharge InterfaceMicro USB/Mini USB/DC2.0Output voltage 5VOutput current4400 mAhInput ... the free maintenance service.6.Packing for your option: 1.Black magnetic box ,silver box ,plastic box ,carton box ,blister box ... welcome 4400mAh Universal Portable Rechargeable Backup PowerBank for mobile phone, digital camera, PDA, PSP, MP3, MP4, iPod, DV