Product DescriptionThe Logitech wireless trackball m570 gives you a different kind of comfort. It stays in one place and supports your hand to let you work all day with ease. System Requirements: Windows Vista Windows 7 Windows 8 or Windows 10|USB port Internet connection for software download|Mac OS X 10.5 or later|USB port|Internet connection for software download. Sensor Resolution: 540.From the ManufacturerWireless Trackball M570Noteworthy FeaturesThumb-operated trackball and laser sensor for smooth, precise cursor controlWorks anywhere you do-even your sofaPowerful 30 ft. wireless range** with tiny leave-in Logitech Unifying receiverUp to 18 months of power on a single AA battery*Scroll wheel and Back/Forward buttons for easy document and web page navigationEnhanced comfort-refines the time-tested shape of the popular Logitech Trackman Wheel* Battery life may vary based on user and computing conditions. ** Actual wireless range will vary with use, settings and environmental conditions. *** Logitech SetPoint? software is required for initial setup and is available at logitech.com/downloads.Logitech Wireless Trackball M570A different kind of comfort and controlYour coffee table. Your favorite chair. Your comfy bed. Now there's no limit to where you can get precise cursor control. This hand-friendly wireless trackball lets you work and play wherever you want. No mouse to move around. No tricky keypad leaving your hand feeling cramped. Just roll the ball with your thumb and click. Precision never felt so comfortable.Stay-put comfortThumb-controlled trackball stays in one placeNo need to slide around a mouse or move your arm to move your cursorSculpted shape supports your hand for comfortable control all day longPlug-and-forget Unifying receiverWireless receiver is so tiny it can stay in your laptopAdd five more Unifying-compatible devices like a wireless keyboard without multiple receivers filling up your USB portsPower to spareGo for up to 18 months without a battery changeUses just one AA battery (included)Battery indicator light eliminates surprisesWork and play anywhereGet precise cursor control wherever you want to use your trackballWorks on hard tables, comfy sofas, even your legCompact footprint-great for tight work spaces with limited room to use a mouseRobust wirelessAdvanced Logitech 2.4 GHz for fast data transmission with virtually no delays or dropouts.Control your laptop, desktop computer or home theater PC from up to 30 ft. away**Quick-access controlsBack/Forward buttons: Flip fast through documents, web pages and home theater PC menusScroll wheel: Spin through long documents and web pagesProgrammable buttons: Customize them to help you do common tasks with one touch***Compatibility Package ContentsTrackballLogitech® Unifying receiver1 AA batteryUser documentation3-year limited hardware warranty Works with: Windows-based PC:Windows XP, Windows Vista or Windows 7USB portInternet connection for software download Mac computer:Mac OS X 10.5 or laterUSB portInternet connection for software download CompareWhich Logitech Trackball Mouse Is Right For You?Good Better Best Trackman Marble Cordless Optical Trackman Wireless Trackball M570 What Do You Get?Fingertip-based control and comfortCordless freedom, comfort and fingertip-based controlThe ultimate in trackball freedom, comfort and thumb-based controlConnection ChoicesWireless: The higher the signal strength, the more reliable the connection27 MHz connectionUp to 6 ft. wireless range**2.4 GHz connection.Up to 30 ft. wireless range**Unifying Receiver: Tiny wireless receiver stays in your laptop and connects multiple Unifying-compatible devicesCorded USBPS/2 ConnectionDesign Features