Dell Mouse MS5320W, Connectivity Technology: Wireless, Interface: 2.4 GHz, Bluetooth 5.0, Movement Detection Technology: Optical, Buttons Qty: 7, Movement Resolution: 1600 DPI (Adjustable via DPM 1000, 1600, 2400, 4000), Features: Swift Pair, shortcut buttons, Included Accessories: 1 AA battery, Width: 6.97 cm, Depth: 11.45 cm, Height: 4.16 cm, Weight: 84 g, Colour: Titan Grey, 3y warranty