If you're passionate about IT and electronics , like being up to date on technology and don't miss even the slightest details, buy Trackball Kensington Orbit at an unbeatable price. Type: Wired Trackball Colour: Blue Black Characteristics: With cable Connections: USB Connectivity: Bluetooth Power supply: Wired Compatible: Windows Mac OS Chrome OS PC Cable length: 1,5 m Technology: Optical Form factor: Ambidextrous Buttons: 2 All-day comfort and scrolling come together in the Orbit Trackball with Scroll Ring. The award-winning scroll ring allows you to spin through web pages and long documents without the need for clicking. It offers better ergonomics, with less wrist and hand movement that will ease the pain of repetitive-stress injuries. TrackballWorks software gives you the opportunity to assign specific functions to your 2 buttons and create a truly customized productivity experience. Optical tracking provides smooth and accurate cursor control, and a detachable wrist rest offers terrific ergonomic support when you’re hard at work.Award-winning Scroll Ring lets you scan up and down pages with easeMedium 40mm ball is designed as a perfect sphere to provide exceptional precisionTrackballWorks software lets you customize the 2 buttons, adjust cursor and scrolling speedOptical tracking technology for superior cursor control and accuracyDetachable wrist rest supports hand and wrist for ergonomic comfortAmbidextrous design works equally well for both right-handed and left-handed usersPlug & Play installation via wired USB connectionPC and Mac compatible Purpose: Office Device interface: USB Type-A Movement detection technology: Optical Scroll type: Ring Buttons quantity: 2 Buttons type: Pressed buttons Sensor type: Optical Trackball diameter: 4 cm Form factor: Ambidextrous Product colour: Black Cable length: 1.5 m Power source: Cable Windows operating systems supported: Y Mac operating systems supported: Y Other operating systems supported