1) Mini optical Mouse with Rubber cover 2) With USB retractable cable 3) Ideal for Notebooks, 800 DPI 4) No ball, no dirt, no cleaning. 5) Optical scanning technology. 6) 2 programmable buttons and 1 scroll. 7) Scroll button: vertical or horizontal scroll by simply clicking on it. 8) All kinds of injection colors or rubber coating colors available Packing: OEM