?Description: Plug &Play Blue and Red LED lighting The roll wheel can be easily guided pleasantly and used as the third usable key USB interface｣ｬ Compatible with USB 2.0 & USB 1.1 Suitable for left and right control 800 dpi for accurate control Work with: Windows98 SE\/ ME\/ 2000\/ XP \/ VISTA &Mac Mouse size: 9cm x 5.5cm x 3cm (approx) Cable length:135cm (approx) Color: Black  Package Included: 1 x USB Optical Mouse