... to cool Lens• Multimedia Function, built-in Video/Audio decoding function, play video/audio file directly. Supports: o Video: MKV MPEG4 ... Built-in speaker, with earphone jack can connect to external speakers• Power source: NP120 Li-ion battery• Can Connect with ... Pocket Projectors, E-books, Tablet PCs (MID), Car Audio/Video Products, Mini MP3 Speakers, Digital Photo Frames, MP3/MP4 Players, etc. ...