The Targus Ultra Mini Retractable Optical Mouse (Silver and Black with red LED) is the perfect solution for the mobile warrior who needs to save space when using an external mouse. The "Screen Scroller Button" allows you to scroll up or down, left or right. The mouse allows you to browse web sites and windows easily. The Ultra Mini Retractable Optical Mouse comes standard with a USB connection (USB 1.1) that allows true plug and play connection with the notebook USB port. Technical Specs: Color: Silver Compliance: CE and FCC Certification Exterior Dimensions: 3" x 1.4" x 0.9" Weight: 1.5 oz Includes: Carrying pouch System Requirements: Windows 98, Windows Me, Windows 2000, Windows XP, Windows Vista, or Windows 7 USB Port Warranty: Limited One Year Warranty covered by the manufacturer Manufacturer's Part Number: PAUM01U.