MUTE BUTTON-Do not disturb family and roommates rest, enjoy a comfortable life. ERGONOMIC DESIGN-Fits to the shape of the hand,skin-friendly feel, anti-slip, and sweat-proof. CONVENIENT CONTROLS - Side-to-side scrolling plus zoom lets you instantly zoom in or out and scroll horizontally and vertically. Perfect for working with spreadsheets and presentations. ZERO SETUP REQUIRED - Flexible wired connectivity means you just plug the cable into your USB or PS/2 port - it works right out of the box. PRECISE CURSOR CONTROL - With 1000 dpi sensitivity, you'll get precise cursor control so you can edit documents and navigate the Web more efficiently. Features Comfortable ambidextrous shape Precision 1000 dpi sensor Vertical and horizontal scrolling plus zoom Plug-and-play USB cord connection Works with Windows, Mac, and Linux operating systems Comfortable shape for either hand Right-handed? Left-handed? Either way, the contoured shape supports your hand in all-day comfort. And the mouse buttons and scroll wheel put comfortable control right at your fingertips. Precise cursor control With a 1000 dpi optical sensor, you’ve got the cursor control you need to quickly and accurately point, highlight, cut, and paste. Zero setup Works right out of the box — just plug it into your USB port and you're ready for business.