Logitech MX ERGO Advanced Wireless Trackball – For PC and MAC Ergonomic Design Adjustable Hinge Precision Scroll Wheel Two-Channel Easy Switch Long-lasting Rechargeable Battery

Logitech. Wireless Mouse for Pc: Mac, linux, windows xp, materia, nintendo, etc. (note: the back of the mouse is not included. CUSTOMISED COMFORT: Choose the best angle, 0 or 20°. The smart, adjustable metal hinge lets your personalise your level of comfort with a natural hand position-and more comfort than a mouse. ADVANCED TRACKING: Get optimal control with the press of a button. A precision mode button lets you instantly switch between speed and high precision tracking, with LED indicators. PRECISION SCROLL WHEEL: Quick access to shortcuts allows you to get things done, faster. The precision scroll wheel with tilt offers horizontal scrolling and a middle click for convenient control. EASY MULTI-COMPUTER WORKFLOW: Connect and work on two devices at once with the 2-channel Easy-Switch feature. Logitech FLOW technology enhances your cross-computer experience. FAST RECHARGEABLE BATTERY: Holds power for up to 4 months on a full charge. One minute of charge gives you up to a full day of u