Marathon Mouse

A strain of genetically engineered mouse with increased muscle expression of PPAR-delta, which turns muscle into type I (slow twitch) fibers that are optimal for long-distance running. Marathon mice have much greater endurance and resistance to obesity
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Plus, you can easily add up to five other compatible Logitech keyboards and mice to the single receiver, including the recently announced Logitech[R] Keyboard K350, Logitech[R] Keyboard K340, Logitech[R] Marathon Mouse M705 and the Logitech[R] Wireless Mouse M505.
You're taking a couch potato mouse, treating them with a drug and converting them into a marathon mouse, if you will," My Fox Houston.
Tiny USB Receiver Debuts with Logitech Wireless Keyboard K350, Logitech Wireless Keyboard K340, Logitech Marathon Mouse M705 and Logitech Wireless Mouse M505
The Logitech Unifying receiver is debuting with four new products: the Logitech[R] Wireless Keyboard K350, Logitech[R] Wireless Keyboard K340, Logitech[R] Marathon Mouse M705 and the Logitech[R] Wireless Mouse M505.
So you can power on - from home to work and on the road - the Logitech Marathon Mouse M705 can go up to three full years between battery changes, using less than half the power of comparable mice (tested against popular battery-powered optical and laser wireless mice commercially available as of March 1, 2009).