Product:Mini projector,build in 4 GB memory,can connect with computer directly by VGA cable. Product description: 1.The mini projector supports mp4 display,and it is able to be connected to Iphone .PSP2000,XBOX,Wii,Ipod,DVD and other digital products with TV OUT output function 2.Support music formats including MP3,WMA,WAV,APE,FLAC 3.Support Video formats:MPEG-4(AVI),3GP,RM,RMVB,FLV,WMV9,resolition(800*600) 4.Storage function :Built-in 4gb mermory .Support external TF/Micro SD memory card 5.Support the reverthing of PPT,JPG,and TXT files 6.USB 2.0 ultra-high speed transmission VGA interface ,AV interface,can be connected to external speakers,restore home theater effect 7.Weight per item:200g 8.Dimension:1/5 of the size of A4 paper 9.Portable 10.With an optional tripod capable of rotating through an angle of 720' .It is enable to watch TV on walls and ceilings while lying in bed 11.Projecting size:30 to150 inches(40-100inches might be the best) 12.Resolution :800*600 13.Optimal projecting distance:2m-3m 14.Dual channel earphone interface Built-in stereo ,hi-fi 3D audio output speaker with adjustable volume Wide range of applications:Eg,Business and product presentations,Company training,School education,Friend's party,Home amusement etc Standard accessories: User Manual,Power Adapter,VGA Cable,AV Cable,USB cable,Tripod,Earphone,LENS Cloth Optional accessories:Remote Control,Battery Pack,Carrying bag