4k HD display, narrow frame design, built-in USB interface in front(Automatically switch between Android and PC based on the signal source), support USB2.0/3.0,Type-c interface. Customized Android system Independent Android system Built-in intelligent core and operating system An ultra-thin pluggable PC module Video conferencing software is built in the PC channel is optional Touch technology Antiglare screen(Use it as usual when direct sunlight) Highly optimized touch algorithm, fast reaction, smoothly in writing and display. 5 Integrated display, touch and intelligent core High quality image processor Intelligent display chipset and Android operating system Any channel can realize writing annotations In standby mode, the HDMI channel signal input intelligent wake-up the display