Many reviews are useless. There are missing qualitative things that are only found in much higher price ... resolution, contrast, true 16: 9 Lens Shift ... OK, even in eco mode, the fan is not the quietest, but you know a second projector with such a built-in media player that can, for example, in the school to replace a laptop? Simply tuck USB flash drive or external hard drive that contains the files and off you go. Today I tried the device and open the following files: Office 2003/2010 files (Word, Excel, PowerPoint), PDF files, DivX movies, mp3s and photos. The latter can even have a slideshow run, adjust the flow rate and to play music. Speakers are integrated, you can adjust the volume astonishingly high. But do not expect any sound miracles, to lack the depths. The service is amazingly light, in 5 minutes you can master the system and remote control, without having first read the manual ... In addition the whole connectivity with HDMI 1.4 ... and the amazing for this price range 3D capabilities, madness ...