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Specification Resolution: 640*480 Display technology: LCOS(liquid crystal on silicon) 3M Optical Engine(MM200) Lift time: above 10000 hours Support AV signal input function, can connect with DVD,STB PSP, Media Player ,VGA input Play time: 90 minutes Screen: 4:3 Built in high quility speaker Can listen music when shut down projection function Remote control Projection image size(diagonal): 6 to 120 inch Luminous flux: 30 lm Projection distance: 21 to 350cm Contrast：>200:1 Zoom and focus: manual Support MPEG4 AVI, RM, RMVB, FLV, WMV, 3GP, MP4 audio format， Support APE, FLAC, MP3, WMA, AAC, AC3, WAV, OGG video format Support Microsoft and regular EQ External memory: TF card(from 128MB to 2GB) Built-in flash memory from 2GB to 8GB Support video format: MPEG AVI、RM、RMVB、FLV、WMV、3GP、MP4； Support picture format: JPEG、BMP ,GIF, Browse automatically； Several music cycle mode; Support WIN2000、WIN XP、VISTA system; High speed USB2.0 transmission speed 4MB/S; Support E-book and book mark; U-disc; Support firmware upgrade; browse E-book and listen music or listen music and browse picture at the same time; Bulb specification: Efficient LED light，2~3W Signal input : Built in multimedia Processor +AV IN interface AV interface: 3-in-1 AV jack Storage: Built in 1GB~8GB and Flash, TF card room Power: 5V, 2A.