... ,000hFocusManualOffset100%Projection sourceAV connector,built-in memory, USB, HDMI,SD/MMC cardSupportImage:JPEG, BMPVedio:H.264, MPEG4, MOV, MP4, AVI, 3GPAudio ... :MP3, WMV, OGGOffice filesPPT, PDFConnector3.5mmInternal memory2GBExternal memory32GB (SD/SDHC/MMC)Built-in battery3500mAh lithium batteryWorking time120 minutesSystem supportWindows XP, Vista ...