Ergonomic Design: Designed for comfort, this Logitech mouse boasts an ergonomic and trendy design. It has a soft rubber, curved grip lets you use the mouse for long hours without experiencing fatigue. Also, the mouse is compact so you can easily slip it in your laptop bag. Smooth and Precise Tracking: Featuring a resolution of 1000 dpi (dots per inch), this optical mouse offers ultra precision and responsiveness. Ideal for regular and office use, the mouse comes with the advanced 2.4 GHz Wireless Technology with an operating distance of 25 metres, Buttons: This wireless mouse boasts 3 buttons and a scroll wheel for easy operation, Nano Receiver: Plug in the nano receiver in one the USB ports and forget about it. This Nano receiver gives you reliable wireless connectivity, Compatibility: The mouse is compatible different operating systems including Windows 7, 8 Vista, XP, Windows 2000 and Mac OS X.