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Front detachable high-precision infrared touch frame, touch accuracy up to ±1mm, touch height 3mm, support 20-point touch, high sensitivity;
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With OPS interface, expandable dual system; front Type-C interface multi-function expansion, high-definition video transmission, USB transparent transmission, touch transparent transmission, external device network transparent transmission, 5V/1A power supply
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The front smart pen has a card slot, no screws and instant adsorption, easy operation; network follow, support a network cable to Andriod, OPS devices can access the Internet at the same time; AG anti-glare tempered glass, Mohs level 7 hardness, safe and secure, better writing experience good;
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4K writing whiteboard, handwriting 4K ultra-high-definition resolution, delicate strokes;
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The front pinhole computer reset button with silk screen logo can easily solve the computer system failure without professionals; the whole machine has a front hidden WiFi, and 8 groups of front buttons in the front, which can realize the teacher switch on and off the machine and call out Central control menu, volume +/-, eye protection, screen recording, child lock, and other operations.