... same time 5.Two output Portable mobile powerThe products is a commercial portable power with high capacity build-in lithium battery ... , it could be used as back up power for a lot of devices and provide two output voltages at same ... , PMP, MP3, MP4,DVR, portable DVD, pocket mini projector, PDA, walkie talkie, Illumination lighting, karaoke player ,and other digital products anywhere anytime ...