Logitech M570 Wireless Trackball Mouse: Easily use your computer for long periods of time with this trackball mouse, which allows you to precisely navigate features with minimal wrist movement. Enjoy lasting comfort thanks to the sculpted shape, which supports the curves of your hand.
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I've been using this mouse since they first came out, and wouldn't be without a spare, just in case. It's fast, easy to use, and makes things so much easier. the ball action is super. Once you try it, you'll wonder how you lived without one.
Logitech M570 Wireless Trackball Mouse: Easily use your computer for long periods of time with this trackball mouse, which allows you to precisely navigate features with minimal wrist movement. Enjoy lasting comfort thanks to the sculpted shape, which supports the curves of your hand.
Does an extended warranty begin at purchase or at expiration of the manufacturer's warranty?