2.2英寸的荧幕mp4的球员

2.2inch mp4 player Mp4 player with 2.2inchscreenMPEG4 is a file format that is commonly used to store media types defined by the ISO/IEC Moving Picture Experts Group, though it can store other media types as well. The files of this format usually have extension .mp4. The start point design of the *.mp4 file format was Apple's QuickTime file format. Having been improved in many ways, today MPEG-4 differs markedly from its predecessor. MPEG-4 allows each streaming over the internet, multiplexing of multiple video and audio streams in one file, variable frame- and bit-rates, subtitles and still images.Being quite often used as the alternative to *.mp3 on an and in iTunes, *.mp4 is still not as widely used in computer and hardware players as the *.mp3 in spite of the higher quality of the AAC codec.The following kinds of data are recommended (for compatibility reasons) to be embedded in MPEG-4:Video: MPEG-4, MPEG-2 and MPEG-1 Audio: MPEG-4 AAC, MP3, MP2, MPEG-1 Part 3, MPEG-2 Part 3, CELP (speech),TwinVQ (very low bitrates), SAOL (midi) Pictures: JPEG, PNG Subtitles: MPEG-4 Timed Text, and/or xmt/bt text format (means that subtitles have to be translated into xmt/bt) Systems: Allows animation, interactivity and DVD-like menus Here are some file extensions used on files that contain data in the *.mp4 format:.mp4: official extension, for audio, video and advanced content (see above) files .m4a: for audio-only files; can safely be renamed to *.mp4, though opinions differ on the wisdom of this. .m4p: FairPlay protected files .mp4v, .m4v: video-only (sometimes also used for raw mpeg-4 video streams not in the *.mp4 container format) .3gp, .3g2: used by 3G mobile phones, may also store content not specified directly in the *.mp4 specification (H.263, AMR, TX3G) Product no.: STM4-078Storage:32mb to 128gbMaterial: MetalFlash: MicronWarranty:life time warrantydesign: free logo printingPayment: L/C,T/T,Paypal,Western union, money gramFeutures:Standard production:3 to 5 daysRush service:1 to 2 daysAvailable colors:ExpressionCompatibilityPC, Notebook or Macintosh with USB portOperation systemsWindows vista/XP/2000/ME/98/95 or Mac OS9.1 and aboveDriversRequired only for Windows 98/95. Online download availableTransfer rateHigh speed USB 2.0.USB1.1compatiblePackaging detailsEarphone, charger,USB cable, user manu,crystal box