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/Wireless Pointing Device Wireless Technology: Bluetooth Number of Total Buttons: 4 Pointing Device Host Interface: USB Scroller Type: Scroll Wheel Ergonomic Fit: Symmetrical General Information Product Type: Mouse Manufacturer Website Address: http://www.microsoft.com Manufacturer: Microsoft Corporation Product Name: Modern Mobile Mouse Package Type: Retail Product Line: Modern Brand Name: Microsoft Interfaces/Ports Pointing Device Host Interface: USB Miscellaneous Device Supported: Computer Physical Characteristics Weight (Approximate): 78 g Colour: Black Height: 25.8 mm Width: 60.3 mm Depth: 107.2 mm Pointing Device Movement Detection: BlueTrack Movement Resolution: 1000 dpi Pointing Device Connectivity Technology: Cable/Wireless Pointing Device Wireless Technology: Bluetooth Number of Total Buttons: 4 Scroller Type: Scroll Wheel Ergonomic Fit: Symmetrical