Specifications are provided by the manufacturer. Refer to the manufacturer for additional explanations. Basic Product Type: Mouse Colour: Peach Brand Name: Microsoft Pointing Device Connectivity Technology: Wireless Pointing Device Wireless Technology: Bluetooth Number of Total Buttons: 4 Scroller Type: Scroll Wheel General Information Product Type: Mouse Manufacturer Part Number: RJN-00041 Manufacturer Website Address: http://www.microsoft.com Manufacturer: Microsoft Corporation Product Name: Bluetooth Mouse Brand Name: Microsoft Miscellaneous Device Supported: Notebook Desktop PC Physical Characteristics Weight (Approximate): 78 g Colour: Peach Height: 38.4 mm Width: 58.2 mm Depth: 100.3 mm Pointing Device Movement Resolution: 1000 dpi Pointing Device Connectivity Technology: Wireless Pointing Device Wireless Technology: Bluetooth Number of Total Buttons: 4 Scroller Type: Scroll Wheel Wireless Operating Frequency: 2.40 GHz