Contoured buttons and sculpted sides for comfort. 2.4GHz wireless for long range and minimal interference. PC and Mac compatible. A mouse that not only fits your hand, but also your style sensibilities. The ergonomic right-handed design provides hours of comfort and with four colors to choose from, its easy on the eyes, too. The Pro Fit Mid-Size Wireless Mouse is built to deliver years of service. Perfect for desktop and mobile users alike, the Pro Fit Mid-Size Wireless Mouse has a nano receiver that operates 2.4 GHz to reduce interference in crowded office environments. The receiver is so small you can leave it in your computer, or slide it in the Pro Fits built-in receiver storage compartment.The Pro Fit Mid-Size Wireless Mouse is big enough to feel just right in your hand, yet small enough to pack easily in your travel bag. And no matter where your work takes you, the high-definition optical sensor delivers precise, responsive cursor control on a variety of surfaces and it operates for up to 12 months on 2 AAA batteries, included. Mid-sized computer mouse with wireless capability High definition sensor provides smooth and sharp cursor control Dedicated back/forward thumb buttons for web browser use Sculpted body with soft rubber panels provides comfort and grip Secure wireless connection reduces interference to improve control Easy USB Plug & Play setup - no installation required.