75 Inches Dual Systems Interactive Whiteboard for School

75 Inches Dual Systems Interactive Whiteboard for School ♦ Aluminum metal case and 4mm full-tempered high explosion-proof glass♦ Convenient Operation with the exquisite module, the general format♦ Support multimedia format♦ Double systems, one button switch♦ customized OPS♦ Customized input interfaces♦ 10-point IR Touch Technology Versions:2. Dual-system for Education+4K+ Touch(not include OPS, CPU DZ-560 2GB+16GB),entry level3.Dual system for conference+4K + Touch(not including OPS, CPU 848 3GB+32GB), medium level 4.Dual system for conference+4K +Touch(not include OPS,CPU 811 4GB+32GB),high levelScreen projectorextra charge if need extra charge if need extra charge if need CPUAndroid DZ-560 with 2GB+16GB(support 4K display)Android MSD848 with 3GB RAM+32GB flash(support 4K display)Android DZ-811P with 4GB RAM+32GB flash(support 4K display)OPSw/o, optional OPS add $190/pcs Win10, intel i3-4th gen 4GB RAM+128GB SSD(support 4K display)w/o, optional OPS add $190/pcs Win10, intel i3-4th gen 4GB RAM+128GB SSD(support 4K display)w/o, optional OPS add $190/pcs Win10, intel i3-4th gen 4GB RAM+128GB SSD(support 4K display)Operation systemAndroid 9.0 Android 8.0Android 8.0Touch screenIR Multi TouchIR Multi TouchIR Multi TouchAnti-glarew/o, optional need extra chargew/o, optional need extra chargew/o, optional need extra chargeDisplay Screen     55,65,75,98" LCD UHD 178 degree IPS  full view angle screen, 3840*2160, LED backlight    View angle: 89/89(H),89/89(V); Contrast ratio:3000; Brightness: 350cdm2; Ratio: 16:9WiFiWiFi 802.11 WiFi 802.11WiFi 802.113G/4G optional optionaloptionalEthemet RJ45 YES YESYESBuletoothoptional YESYESHDMI-INHDMI-INHDMI-INHDMI-INUSB Port yes yesyesWiFi Port yes yesyesRJ45 yes yesyesON/OFF switch yes yesyesVideo format   MPEG-1,MPEG-2,MPEG-4,H.264,H.265,RV etc.,support up to 1080pAudio format   MP3/WMA/AAC etc.Photo    jpeg, etc.Power Consumption118W156W188WSpeaker 2*5W 2*5W2*5WFront  camera w/o w/ow/oLanguage Multi-Language Multi-LanguageMulti-LanguageAdapter Internal power board (AC100-240V)   Accessories:AC cable, packing box, manual  /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1