Stylish and convenient If you need a USB mouse for your laptop or desktop computer, the Etekcity® Scroll M535 is the perfect choice. Compatible with Windows, Mac, and Linux PCs, simply plug in the USB cable and within seconds you"ll be using your awesome new mouse. Have you ever frantically shaken your mouse trying to find the cursor? No more worries! A new, patented feature allows you to center the cursor to the middle of the screen with only one click. No more hand pain or fatigue Designed for all-day comfort, This mouse has an adjustable thumb rest and ergonomic design. Bringing increased usability to your computing experience, the Etekcity® wired optical mouse also features thumb back/forward buttons. The attractive design adds a modern appearance to your workspace, and the high-resolution optical sensor provides consistent, accurate performance. Buttons x 7! This mouse features seven customizable functions; by using the included software, you can freely change the function of the 5 mouse buttons and the scoll wheel"s up/down directions. Each button can be mapped to any key on your keyboard or set to perform one of many common media and productivity functions. Specifications Interface: USB 2.0/3.0 Compatible with: Windows XP/Vista/7/8, Mac OSX, Linux Cable length: 5 ft. Sensitivity: 1000/1500/2000/3000 DPI Max acceleration: 20 G Polling Rate: 500 Hz Size: 118 x 84 x 44 mm Keystroke life: ≥10 million clicks Power: 5V ≤100mA Package includes 1x Etekcity® Scroll M535 Wired USB Optical Mouse 1x User Manual