The features that matter most in your office are comfort and reliability. And the Kensington Pro Fit 2. 4 GHz Wireless Full-Size Mouse delivers with plenty of both. The full-sized right-handed design feels great in the hand while the 2. 4GHz wireless technology is ideal for crowded office environments. The Pro Fit range delivers performance and comfort that business users require, day after day, without any fuss. Designed specifically for the business professional the Pro Fit range is the perfect step up from entry level input devices delivering performance that can be relied upon. 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 Adjustable sensor sensitivity to suit you 2. 4Ghz wireless USB receiver (applies to wireless models) Colour Black