MX Ergo Wireless Trackball Mouse ? Adjustable Ergonomic Design Control and Move Text/Images/Files Between 2 Windows and Apple Mac Computers (Bluetooth or USB) Rechargeable Graphite black

Ergonomic sculpted design - unique adjustable hinge allows you to customize the trackball angle from 0 to 20 degrees for a more natural comfortable hand position and reduced muscle strainCross-computer control- game-changing capacity to navigate seamlessly on 2 computers and copy-paste text images and files from one to the other using Logitech flowDual connectivity- use with up to 3 Windows or Mac computers via included Unifying receiver or Bluetooth smart wireless technologyRechargeable battery- up to 70 days of power on a single charge;
Nominal value: 380 dpiPrecision scroll-wheel - tilt and middle click wheel allows for precise scrolling and other Convenient controls such as horizontal scrollingMinimal and maximal value: 512-2048 dpi