ProHT Gaming USB Mouse (07242), Wired Optical Mouse w/ Ergonomic Design for Mac/PC/Laptop/Desktop, Adjustable DPI Switch 800/1200/1600/2000DPI, Black OPTICAL ENGINES- positioning precision. Ensures easy and fast navigation when playing your favorite games. USB Optical Gaming Mouse has double multimedia model. ERGONOMICS DESIGN - comfortable for using. fits naturally in hands. Internally and externally, to create the ultimate game concept, long-term use without fatigue. ADJUSTABLE 4 DPI SWITCH - 800/1200/1600/2000DPI, switch freely at different speed. You can control your games with extreme precision and accuracy. OPERATING SYSTEM COMPATIBILITY - Windows XP, Windows Vista, Windows 8, Windows 7, Windows 10 or later, USB Port. 6 BUTTONS - scroll wheel, page forward, page backward, left button, right button, DPI key. When you browse web pages, you can click the side (forward/backward) buttons to go to the next or previous page. Simply plug and play. 100% lifetime warranty.