Brand - A4TECH, Model - A4TECH OP-720, Series - Regular, Type - Optical Mouse, Connectivity - Wired, Interface - USB, Style & Size - Ergonomic, 2X Click - No, Click Sound - Yes, Mode - Single, Max DPI - 1200 DPI, Number of Button - 3, Wheel - Yes, Lighting - No, Tracking Type - Optical, Cable Length - 4.9 ft., Dimensions (WxHxD) - 62 x 119 x 37mm, OS Support - Windows XP / Vista / 7 / 8 / 8.1 / 10, Color - Black, Others - Ergonomic Design: Symmetric, Specialty - The A4tech optical wheel Mouse with hyper-fast scrolling for increased productivity. A nearly frictionless scroll wheel lets you fly through long documents and Web pages with a single flick. Experience smoother cursor control on virtually any surface. Contoured design give you more support and control., Warranty - 1 Year, Country of Origin - Taiwan, Made in/ Assemble - China