Specifications are provided by the manufacturer. Refer to the manufacturer for additional explanations. Basic Product Type: Mouse Movement Detection: BlueTrack Brand Name: Microsoft Pointing Device Connectivity Technology: Cable Number of Total Buttons: 5 Pointing Device Host Interface: USB Scroller Type: Tilt Wheel Ergonomic Fit: Symmetrical General Information Product Type: Mouse Manufacturer Part Number: 4FD-00027 Manufacturer Website Address: http://www.microsoft.com Manufacturer: Microsoft Corporation Product Model: 4500 Product Name: Comfort Mouse 4500 Product Line: Comfort Brand Name: Microsoft Interfaces/Ports Pointing Device Host Interface: USB Miscellaneous Device Supported: Computer Certifications & Standards: ACMA Declaration of Conformity (Australia and New Zealand)ICES-003 report on file (Canada)EIP Pollution Control Mark, EPUP (China)CE Declaration of Conformity, Safety and EMC (European Union)VCCI Certificate (Japan)KCC Certificate (Korea)GOST Certificate (Russia)CITC Letter (Kingdom of Saudi Arabia)BSMI Certificate (Taiwan)FCC Declaration of Conformity (USA)UL and cUL Listed Accessory (USA and Canada)CB Scheme Certificate (International)ISO 9001ISO 1400 System Requirements: For Windows-based PC:100 MB of Available Hard Disk SpaceIntelliPoint Software Version 7.1For Macintosh:30 MB of Available Hard Disk SpaceIntelliPoint for Mac Software Version 7.1Operating Systems:Windows 7Windows VistaWindows XP with Service Pack 2Mac OS X v10.4x-10.6x Country of Origin: China Environmentally Friendly: Yes Environmental Certification: WEEE REACH RoHS Physical Characteristics Weight (Approximate): 131 g Height: 42.2 mm Width: 67.8 mm Depth: 116.1 mm Pointing Device Movement Detection: BlueTrack Movement Resolution: 1000 dpi Pointing Device Features: Rubber Grip Dust Resistant Contour Pointing Device Connectivity Technology: Cable Pointing Device Cable Length: 1.93 m Number of Total Buttons: 5 Number of Programmable Buttons: 5 Scroller Type: Tilt Wheel Ergonomic Fit: Symmetrical Warranty Limited Warranty: 3 Year