1.Portalbe backup battery for smartphone,PSP,GPS, Bluetooth 2.DUAL USB output 5V/1A with led 3.DUAL 3W+3W high ... , tablet pc, PSP, GPS,Bluetooth, Camera and so on. Dual output port portable backup battery. It has two high quality speaker ... Capacity: 6000mAhVolume: 3W+3WSpeaker: 4OM+4OM3.Accessories 6000 mAh Portable backup battery with speaker for smartphone,tablet pc,ipad ,digital camera etc