1.display:RGB LCOS(liquid crystal on silicon) touch  2.lifespan:over 10000 hours                       3.screen:4:3                                               4.projection distance:21 to 200cm                5.projection image size:6 to 100 inches6.standard screen resolution:640*480pixels7.zoom and focus:manual                                8.contrast ratio:200:1                             9.language:simplified chinese,english,traditional chinese,korea,etc.                        10.Luminous flux:Max.20 LM                                       11.external memory:TF card                         12.internal flash:1GB-8GB                                   13.built-in video/autio decoding function,player video/audio file directly,supports: video:MKV,MPEG4,AVI,RM,RMVB,FLV,WMV,3PG,MP4 AUDIO:mp3.wma,wav.ape,flav,aac,ac3,ogg, picture:JPEG,BMP,GIF                                       14.input interface:VGA,AV,YPBPR jack 15.built-in speaker,support remote control16..USB interface:USB2.017:power source:Np120 Li-ion batterydimension:110*59*20mmweight:160g