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intelligent infrared interactive whiteboard display
Selling leads
...infrared interactive blackboards, middle with 75 inches smart board, two black boards in both side, support chalk/marker writing, forming a perfect ...
2025-07-09 00:21:32
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...traditional blackboard and new multimedia teaching. The device includes blackboard, touch screen display, microphone, speaker, visualization system...
2025-06-21 19:08:32
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