Specify that Authy Bluetooth is commercial software
Specify that Authoxy is gratis
Specify that Airfoil is commercial software
Specify that Aurora is commercial software
Specify that Audioslicer is under GNU GPL

http://audioslicer.sourceforge.net/

> AudioSlicer is copyright © 2004-2007 by Bernd Heller. It is licensed
> under the GNU Public License (GPL).