ControlAir is a free OS X application that provides magical touch free control over media applications on your Mac, such as iTunes, Spotify and others. ControlAir is a great way to control your media applications touch-free, not only when they are in front of you, but also when they are in the background, while you are engaged with a different app.
ControlAir supports the following apps:
– QuickTime Player
Requires OS X 10.7 or later