Kensington MC K72352US Nano USB Orbit× Wireless Mobile Trackball Mouse Retail

Unique touch scrolling along with compact 32mm ball lets you glide effortlessly through web pages and documents
Ambidextrous design for right-handed or left-handed users
TrackballWorks^TM software provides a customized productivity experience
Plug and Play installation
Compatible with Windows® 10/8.1/8/7 and Mac OS® X
Plug and play with no drivers needed
Compatible with Windows® 8
2.4 GHz wireless with storable nano receiver works wherever you do