... convenient for business,home theatre;4.Support iphone ,ipad and HD videos play;5.4 G memory, support TF card expand;6 ... speakerProjection distance0.2-4mDisplay size100 inchesVideo formatmkv,avi ,TS/TP,mp4/m4v ,mov ,vob,pmp,rm/rmvb ,mpg ,flv,wmv ,3gp ...