Optical technology LED lights scan the surface beneath the mouse to detect movement with a fair amount of accuracy, suitable for everyday computing and browsing. Wirelessly connects to your computer This mouse connects to your computer without using wires via Bluetooth or using a wireless 2.4GHz USB receiver and works up to 10 feet away. 4-button design includes Windows button The Windows button on the mouse can be swiped to navigate apps or browser windows, and it can be clicked to activate the Start menu. Adaptive touch display You can use your mouse as normal and then sit back and control a slideshow or a movie download from a distance. Compatible with most versions of Windows Works with most PCs. Without USB cable and flash