Use code MLCK31DENL1 to save $2.50 off of the regular price of $9.99 Same code works for dark blue version: http://www.meritline.com/logitech-v220-royal-blue-optical-notebook-mouse---p-47447.aspx?strcoup=MLCK31DENL1&dealid=30215 General Information Manufacturer: Logitech Manufacturer Website Address: www.logitech.com Marketing Information: Built for comfort, the Logitech V220 Cordless Optical Mouse for Notebooks features an ergonomic design with soft rubber grips. A convenient mini-receiver snaps into the mouse for easy transport. Pointing Device Pointing Device Connectivity Technology: Wireless Movement Detection: Optical Movement Resolution: 1000 dpi Scroller Type: Scroll Wheel; Tilt Wheel Design: Ergonomic Pointing Device Host Interface: USB Package Contents: V220 Cordless Optical Mouse for Notebooks Mini-Receiver System Requirements: Windows Vista Windows XP Mac OS X (10.2.8 or later) Standard Warranty: 90 Days Limited