Touchscreen 2.18 M 86 black 4k ultra hd 3840 x 2160 pixels 16:9 350 cd m 1200:1 6 ms 60 hz built-in speaker s 16 w wi-fi 5 802.11Ac bluetooth 5.0 Ethernet lan vesa mounting 490 w the next generation of digital technologies is transforming the way people live, work, and study. And now, interactive flat panels have emerged to meet the needs of today’s customers. In settings where communication and collaboration are necessary, daily requirements, such as office meetings and classrooms, interactive flat panels can elevate efficiency and bring everyone together.Here, hikvision's products take the lead with flexible, multi-functional solutions featuring ultra-4k resolution, accurate on-screen writing, built-in whiteboard software, and wireless screen projection. Display display diagonal 2.18 M 86 display brightness 350 cd m display resolution 3840 x 2160 pixels hd type 4k ultra hd led backlighting type direct-led native aspect ratio 16:9 contrast ratio typical 1200:1 response time 6 ms maximum refresh rate 60 hz touchscreen yes touch technology multi-touch touchscreen type infrared number of simultaneous touchpoints 45 touch system response time 10 ms touch object size min 1 mm viewing angle, vertical 178 viewing angle, horizontal 178 pixel pitch 0.164 X 0.493 Mm colour gamut 90% computer system operating system installed android operating system version 11 built-in processor yes processor architecture arm cortex a72 arm cortex a53 processor frequency 1.8 Ghz processor cores 6 ...