HP KC979AA#ABA Wireless Laser Mouse (Cocoa) Wireless Laser Cocoa Mouse with 800dpi Laser Sensor Tilt Wheel for Four Way Scrolling and Ambidextrous to Fit All Hands Three Button Functions Including Zoom Programmable Buttons for Your Needs / Magnifier, Web Browser, Minimize, Maximize and Many More Power Saving Modes of Standby and Sleep and Battery Life Indicator Light