‐ Stylish design and comfortable shape, robust and waterproof, made of silicone. ‐ Accurate and smooth cursor movement, excellent performance – The rubber coated surface provides comfort – 800 dpi optical sensor with 3000 frames/second scanning speed – Compatibility: Microsoft Windows7/Vista/XP/2000/ME/98 – Data transfer: USB ‐ Button layout: Left & right buttons and scroll wheel with 3 buttons – Dimensions: 130x80x48mm – Net weight: 180 g ‐Colors: solid, translucent and any custom colors – Approvals: CE ROHS FCC