ELECOM Wired Thumb-Operated Trackball Mouse, 5-Button Function with Smooth Tracking, Precision Optical Gaming Sensor (M-XT2URBK-G)

With advanced optical sensor for exceptionally smooth tracking, Thumb-operated type USB trackball. Equipped with high-performance optical sensor to detect movement of trackball. Optimized outstanding pointer following by high-perfornce lens and peripheral optical design. Ergonomic design is easy to operate and reduce fatigue. Equips with "Forward" and "Back" buttons. They are useful to Internet searching. Equips with "Pointer spped slow down" button which makes movement speed of pointer slow only while pushing switch. The tilt wheel to scroll right and left by inclining. It is useful to Excel works. You can switch two phases, 750/1500, pointer movement speeds by the speed schange switch. High durable switch by OMRON company adopts in right and left buttons. You are able to assign your favorite function to functional buttons by downloading ELECOM Mouse Assistant is free download soft. Easily remove the ball from back hole. To clean the mouse easily. Support OS: Windows 10, Windows RT8. 1?Windows 8. 1?Windows 7?Windows Vista?Macintosh OS X 10. 10. *May require updates to the latest version of each OS and install the service pack. Windows RT8. 1 Could not Horizontal scroll. Resolution: 750/1500 counts (Can be switched) 5 Buttons include tilt wheel Dimensions: W9. 5cm/3. 7inch x D12. 4cm/4. 9inch x H4. 8cm/1. 9inch Cable length: About 1. 5m Weight: About 154g