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Introducing the New Perfit Mouse Optical (PMO) and Perfit Mouse Classic Plus (PMO5). Evolving from the original patented shape, the new versions maintain the ergonomic integrity of the time-tested form while adding new productivity enhancing features.

The original Perfit Mouse, introduced in 1995, has provided over 100,000 users with unparalleled comfort and performance. Years later, the Perfit Mouse continues to be highly recommended by safety specialists, health professionals and ergonomists. In many instances, the Perfit Mouse is the only solution for eliminating or reducing hand and wrist discomfort while maintaining a high level of productivity.

The Logitech MX500 gives you a high-performance MX Optical Engine, more efficient scrolling, and more. We engineered this mouse so that you can do more, better, faster, and with greater control.

Logitech USB MX300 Optical Mouse:The Logitech MX300 features the new Logitech MX Optical Engine, a new tracking technology that captures more data with each move you make. In other words, you get instant response to even your fastest movements with more accuracy and control. It's a great choice for anyone who wants outstanding performance and a comfortable fit in a stunningly eye-catching design.