Nine of the programmable buttons have removable keycaps for easy labeling
Inner Ring (jog) - rotates through 360 degrees and provides frame by frame control
Outer Ring (shuttle) - rubberized and spring-loaded for fast forward & rewind functions
Jog & Shuttle can also be used for scrolling, volume control, sequencing & more!
Macintosh Requirements - PowerBook, iBook, iMac
Contour Design ShuttlePRO v2 3D Input Device 00499-0 3D Input Devices