Beijing Really Sun Co., Ltd.

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Help Center

	Mouse is always trembling, please tell me why?
	The cursor may stay at the top left (top right) fixedly or quiveringly, ..
	When I draw a line on the whiteboard, it is not straight, why?
	Electronic pen may control partial whiteboard, why?
	The electronic pen can not control whiteboard, please help me!
	Why do some buttons not work, and some do?
	All buttons don’t work, why?
	Why the indicator of whiteboard is keeping red?
	Why the indicator of whiteboard is not bright?

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