Detailed Product Description computer mouse,optical mouse,3d optical mouse Brand: VCL Model: VMM-0321'Compatable in any systerms ... and play,portable size WITH restractable line for connection3'type: optical mouse with 800DPI --high resolution4'300,0000times key life ,long ... years ago and we specialised in computer mouse ,such as optical mouse,wireless mouse,mini gift mouse.everyday we produce 4000 ...