Kensington Orbit Mouse - Wireless Mobile & Compact Ergonomic TrackBall Mouse for PC, Mac and Windows with Touch Scrolling, Ambidextrous Design and Optical Tracking - Red (K72352EU)

2.4 GHz Wireless Nano Receiver - Offering cable-free versatility for productivity on the go, the receiver can be stored inside the trackball for safekeeping when not in use Touch Scrolling - This unique feature lets you slide your finger around the outer ring of the trackball, letting you glide effortlessly through web pages and long documents Optical Tracking Technology - Provides precise cursor movement for superior accuracy so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency Ambidextrous, Two-Button Design - Along with a centered compact 32 mm ball, it works equally well for either right-handed or left-handed users Plug and play with no drivers needed plus KensingtonWorks software allows you to create a customized productivity experience On/Off switch helps prevent accidental battery drain Professional matt black and high gloss black finish with deep red track ball