1、[Multiformat Playback] This machine supports PPT, PDF file playback, automatic mixing and playback when booting, horizontal and vertical screen display, and supports 3.5 sound head to connect to the sound. 2、[HD Video Playback] This machine supports 2K and 4K high definition video playback, and uses hardware and software combined with decoding to support mainstream common formats and encodings. 3、[Multiple Subtitles and multiple sound tracks] This machine supports movie SRT external subtitles, m ultiple sound track switching, and supports video with HDM output sound connected to 3.5 sound power amplifier output. 4、[Multiple Resolutions] This machine supports multiple resolution output, the output resolution can be up to 3840 x 2160 30Hz, the player can automatically match the appropriate resolution according to the actual resolution of the connected TV. 5、[Built in 4G Storage] This machine has its own built in 4G storage space, which can automatically copy the files that need to be played automatically to the machine memory for playback. Iterm Type: HD Video Player Model: MP28 Material: Aluminum Alloy Product Interface: HD Multimedia Interface+AV+USB+Storage Card Slot Resolution: 3840 x 2160 30Hz Built In Storage: 4GB Video Formats: AV, MXF, MP4, FLV, MKV, ASF, DAT, RM, RMVB, AMV, F4V, M4V, H.265MP4, VoB, ISO, M2TS, 3GP, 3G2, M2V, MOV, MPG, WMV, MTV , OGV, TS, WEBM, DV, SWF, etc. Image Format: JPG, BMP, JPEG, GIF Storage Support: Actual Test 5000G Mobile Hard Disk, Storage Card Support 128G (Not included), U Disk 500G (Not included) Supported Languages: Chinese Simplified, English, Russian, Korean, Japanese, French, German, Italian, Spanish, Portuguese, Arabic Remote Control Battery: 2 x AAA Alkaline Battery (Delivered Without Battery) 1 x Host 1 x Remote Control 1 x Sound Line 1 x Power Adapter