High reading accurancy of picture for used Laser type sensor, Laser sensor is accurater than Optical sensor.
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Logitech Wireless Trackball M570Logitech 910-001799 #ad - Scroll wheel and Back/Forward buttons for easy document and web page navigation. Powerful 30 ft. Your favorite chair. Your coffee table. Work and play anywhere: get smooth, precise cursor control wherever you use your trackball-your desk, couch, even your bed. Logitech unifying receiver: connect up to six unifying compatible devices with one tiny wireless.
Long battery life: go for up to 18 months without changing the included AA battery* *Battery life may vary based on user and computing conditions receiver that stays in your laptop. For windows or Mac OS: Robust 2. 4 ghz wireless connection lets you control your laptop, desktop computer or home theater PC wirelessly from up to 30 ft.
Logitech Wireless Trackball M570 #ad - Away** ** actual wireless range will vary with use, settings and environmental conditions Please refer the User Manual before use. Compatible with windows xp, windows 7, windows 8, Windows Vista, Windows 10 and Mac OS X 10.5 or later. Trackball comfort: sculpted shape supports your hand and stays in one place-move the cursor without moving your arm.
Now there's no limit to where you can get precise cursor control. Enhanced comfort—refines the time-tested shape of the popular Logitech Trackman Wheel. Wireless range with tiny leave-in Logitech Unifying receiver.
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LTGEM Case for Logitech M570 Wireless Trackball Computer Wireless Mouse - EVA Hard Protective Case Travel Carrying Storage Bag #ad