High Color Gamut 55inch Wall Mounted Infrared Touch Advertising for Education

High color gamut 55 inch wall-mounted infrared touch advertising machine(55 - 105 inch )Whiteboard writing / interactive whiteboard :√ 4K writing whiteboard, writing handwriting with 4K ultra-high definition resolution and delicate strokes√ performance writing software, supports single-point and multi-point writing, adds pen writing effects, etc., supports whiteboard insertion of pictures, adding pages, gesture board sassafras, zoom in, zoom out and roaming, scan QR code to share, annotations can be made in any channel and any interface and other functions√ whiteboard page is infinitely zoomable and can be undone and restored at will, with no limit on the number of steps√ AG anti-glare tempered glass, Mohs level 7 hardness, safe and secure, and a better writing experienceProduct Description  panelscreen size55 "screen supplierLG/BOE/AUOBacklight typeD-LEDresolution3840*2160brightness500cd /m²screen contrast100 00:1Response time6msPixel pitch0.124×0.372 mm (H×V)Frame rate60Hzperspective178°(H) /178°(V)Color saturation (x%NTSC)90 %Visible area1208.6(horizontal)×679.4(vertical) mmchromaticity1.07B ( 8 bits)life5 0,000hrsPlanchipMSD848(8386)System propertiessystem versionAndroid 8.0 _CPU architectureCA53*2+CA73*2CPU working frequency1.5GHz _ _Number of CPU coresQuad coreGPUG51MP2Internal cache capacity (RAM)DDR 4 3GInternal storage capacity (ROM)Emmc 32GBuilt-in camera module Highest effective pixel800WBuilt-in microphone module Effective receiving range distance5 meters pickup range  Other parameters power supply100-240V, 50/60HzOverall machine power consumption (excluding OPS)≤150WStandby power consumption