J12 Portable USB HDMI VGA Input 1080P Full HD WIFI Wireless Screen Mirroring Projector Configuration Type Screen Mirror Physical Resolution SVGA / 800x480 Pixels Physical resolution Lamp Life and Type LED light source, above 30,000HRS LED Luminous Efficiency ~90%;1800ansi Lm Peak Brightness 55 Lx Contrast Ratio 1800:1/Static,10,000:1/Dynamic Maximum. Supported Resolution Full HD (1920 x 1080P) at 60Hz Aspect Ratio Native 16:9, compatible 4:3 Display Type Single LCD Panel Hybrid LED Light Source Imaging Optical Engine LCD Size 4in Liquid Crystal Display Projection Mode Front & Rear, support Ceiling or by MINI tripod Throw Ratio 1.38:1 Image Size (Diagonal) 28inch ~ 180inch Projection Distance 1.2~5.5m / 3.9~18ft Best Screen Size/Distance 60inch ~ 80inch / 2.2~2.6 m Support Screen Flip Up and down,left and right Projection Lens Manual lens / focus Keystone Correction Vertical: +/-15° I.R (Remote Control Receiver) x1 (Front, facing user ) Speakers 4Ω, 3W x1(SRS Sound Technology) Video Compatibility SDTV (480i, 576i) / EDTV (480p, 576p) / HDTV (720p, 1080i, 1080p), NTSC (M, 3.58/4.43 MHz), PAL (B,D,G,H,I,M,N) SECAM (B,D,G,K,K1,L) I/O Connection Ports VGA/AV/audio x1; HDMI x1; USB x1;  OSD Menu Language 23 country Languages OSD Czech;Danis;German;English;Spanish;Greek;French;Croatian;Italian;Hungarian;Dutch;Norwegian;Polish;Portuguese;Russian;Romanian;Slovene;Serbian;Finnish;Swedish;Bulgarian;Slovak;Chinese_Sim.. Movie Format Support  MPG,AV,TS,MOV,MKV,DAT,MP4,VOB /1080P Level Audio Format  MP3,WMA,AAC,AC3,M4a(aac)… Picture Format JPG, JPEG, BMP, PNG E-book Read Format TXT, LRC, etc. Remote Control Battery AAA x 2 (Not included)