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This kind of wireless mouse called TOP-MOUSE can available on both sides, it is similar to the normal mouse, but it can be available on the reverse side because of built-in gravity sensor, because the undersurface of this mouse is cambered, so it can be rotated in every direction, this kind of mouse could be applied to every cases, such as computer games and exhibitions. It makes the man-machine operation more funny and efficient.
Mingming Wang Jingwen Yu