You can also check Logitech MK540 Wireless Keyboard Mouse Combo and Logitech Wireless Mouse M215 for a better comparison at Wireless-mouse.org.

The that's a smooth traveler.
Comfort contoured comfortable-even when the Good-bye, tricky touchpad cursor on the you computer most.
Six-in-one tiny Unifying® connects Unifying-compatible powerful, (up meters).
Year-long battery You can go without On/Off conserve power, smart extends life an indicator eliminates surprises.
Package Wireless Mouse M317 1 AA Battery User System Windows Vista® 7, OS® X later kernel 2.6+ USB port.
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