Specifications are provided by the manufacturer. Refer to the manufacturer for additional explanations. Basic Product Type: Mouse Movement Detection: BlueTrack Colour: Black Brand Name: Microsoft Pointing Device Connectivity Technology: Cable Number of Total Buttons: 5 Pointing Device Host Interface: USB 2.0 Type A Scroller Type: Scroll Wheel Ergonomic Fit: Right-handed Only General Information Product Type: Mouse Manufacturer Part Number: RJG-00005 Manufacturer Website Address: http://www.microsoft.com Manufacturer: Microsoft Corporation Product Name: Ergonomic Mouse Brand Name: Microsoft Interfaces/Ports Pointing Device Host Interface: USB 2.0 Type A Physical Characteristics Weight (Approximate): 104 g Colour: Black Height: 42.2 mm Width: 77 mm Depth: 117.6 mm Pointing Device Movement Detection: BlueTrack Movement Resolution: 1000 dpi Pointing Device Connectivity Technology: Cable Number of Total Buttons: 5 Scroller Type: Scroll Wheel Ergonomic Fit: Right-handed Only