Specifications are provided by the manufacturer. Refer to the manufacturer for additional explanations. Basic Product Type: Mouse Movement Detection: BlueTrack Colour: Lilac Brand Name: Microsoft Pointing Device Connectivity Technology: Wireless Pointing Device Wireless Technology: Bluetooth Number of Total Buttons: 2 Scroller Type: Scroll Plane General Information Product Type: Mouse Manufacturer Part Number: ELG-00022 Manufacturer Website Address: http://www.microsoft.com Manufacturer: Microsoft Corporation Product Name: Arc Mouse Product Line: Arc Brand Name: Microsoft Miscellaneous Device Supported: Desktop PC Physical Characteristics Weight (Approximate): 82.5 g Colour: Lilac Height: 14.2 mm Width: 55.1 mm Depth: 131.3 mm Pointing Device Movement Detection: BlueTrack Movement Resolution: 1000 dpi Pointing Device Connectivity Technology: Wireless Pointing Device Wireless Technology: Bluetooth Number of Total Buttons: 2 Scroller Type: Scroll Plane Wireless Operating Frequency: 2.40 GHz