This product supports dual audio and video input, and the highest supported 5MP ultra-clear camera input. The picture quality effect is greatly improved, using the WIN10 system card design, the operation is convenient and easy to understand, and we Some expansion have also been added, such as: adding support buttons, and serial port operations, and secondly, you can also connect external Storage, the new design scheme includes the latest H265 encoding design, reducing disk consumption, video output support Support and CVBS output at the same time. Product Features: mobile DVR Support connection to CVBS, TVI, AHD, D1-5MP pixel cameras mobile DVR Support H264 H265 image compression technology mobile DVR Support dual card, single card maximum 512G SD card mobile DVR Support output 1080P-60fps (audio synchronization) mobile DVR Support picture-in-picture preview mobile DVR Support USB hard disk or U disk or SD card external storage mobile DVR Support SD card to upgrade firmware mobile DVR Support six languages(Chinese or English or German or Spain or Polish or French) mobile DVR Support serial communication mobile DVR Support OSD on and off mobile DVR Support image brightness or chroma or contrast or mirror settings mobile DVR Support power failure protection function mobile DVR Support MP4 video file format New coding technology: mobile DVR Support or 60fps audio high fidelity output Audio adopts AAC compression method, the sound is clear D1 to 8 million camera inputs on AHDandTVAandCVBS cameras Support 2-channel mixing: (camera access or CVBS or AHD or TVI in different formats) (PALandNTSC) Support 2-channel ultra-clear audio and video synchronous recording Colour:Black Material:aluminum alloy Package Contents: 1 x video recorder Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.