75′ 85′ Inch Ultra HD 4K Wireless Interactive TV Touch Screen Whiteboard The Smart Board Touch Screen

75' 85' Inch Ultra HD 4K wireless interactive tv touch screen whiteboard the smart board touch screen1. OEM/ODM2. With/without OPS3. Support software for education/meeting4. Package: wooden standard pacakge5. Resolution: 4K, 3840*21606. Android 8.0, 4+32GB7. Sample is available8. Wall mouted/Floor stand soket optional9. Touch mode: IR, Capacitive availableSpecifications:Screen Size85 inchPanel Typea-Si TFT-LED backlightAspect Ratio16:9,Wide SXGAResolution3480*2160 (4K)Viewing Angle178(H)/ 178(V)Brightness350cd/m2Active Area1429x804mmResponse Time8msDisplay Color8 bit 16.7MService Lifetime≥50,000 hoursTouch SystemGlass thickness4mm   Sensing TypeInfrared System (Multi 10point touch)Response Time6msConnectionFull-speed USB (Driver free)Light Transmittance88% light transmittanceSurface ProtectionTempered Glass with 4mm thickness StandardOperating SystemAndroid PartOperating SystemAndroid 6.0CPUMstar 648   (this board suitable for teaching, training, conference and commercial applications)RAM2G    (4GB)ROM16G   (16GB/32GB optional)SD card slotSupport MAX 32GInternetWIFI (802.11ac), RJ45 InterfaceVGA -IN*1, AV -OUT*1, Headphone -OUT*1, HDMI -IN*1, USB*3,  Audio-in*1, TF card slot*1OthersSpeaker2*15WEnergy Saving Modeyes, can be adjustableLanguagesSpainish, English,Chinese, French, German etc.OPSoptionalSoftwareWhiteboard software.Support WORD, EXCEL, PowerPoint, PDF presentations edit mode annotate and modify the state, and kept the original track; Support recording teaching contents.PowerPower SupplyAC100~240VFrequency50/60HzWorking EnvironmentOperation Temperature0ºC~50ºC   Storage Temperature-20ºC~60ºC   Working Humidity85%   Storage Temperature85%     /* 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