Logitech V100 3-Button USB Optical Mouse w/Tilt Wheel Plus Zoom Technology (Black/Dark Gray) Logitech V100 3-Button USB Optical Scroll Mouse General Features: Color: Black/Dark Gray USB interface (up to 2-foot cable length) 3-buttons Precise Optical Technology Tilt-Wheel Plus Zoom Side-to-Side scrolling Contoured shape Ideal size for Notebook computers Plug and Play Regulatory Approvals: FCC CE cULus MIC VCCI C-Tick