Wejoy L1 80 Lumens 4 inch LCD Technology HD 800*480 pixel Projector, VGA, HDMI(Black)1. 800*480 pixels WXGA original resolution, compatible with WUXGA(800*480). 2. High efficient LED light, lamp life span more than 20,000 hours. 3. Speakers built in projector, no need connect with any extra speakers. 4. Monolithic 4 inch LCD technology, HD display. 5. Compatible with PC: WXGA(1,280*800, 1,280*768), UXGA(1,600*1,200), SXGA+(1,400*1,050), SXGA(1,280*1,024), XGA(1,024*768), SVGA(800*600), VGA(640*480). Specification: General Model L1