... is a commercial portable power with high capacity build-in lithium battery, it could be used as back up ... , mobile phone, iPOD, iPhone, PSP, PMP, MP3, MP4,DVR, portable DVD, pocket mini projector, PDA, walkie talkie, Illumination lighting, karaoke player ... to cooperate with you. Portable mobile power charging laptop , camcorder, mobile phone, MP3, MP4,DVR, portable DVD, pocket mini projector, PDA ...