The Hensel RF Remote Control Flash Link for TRIA Series power packs allows remote control and firing via radio signal. The system consists of two radio transceivers and control software for your computers Windows OS.
Connect one of the transceivers to the control port on your TRIA power pack, the other to your computer's USB port. Double click, and you can control power levels and firing of your power pack.
Purchase an additional tranceiver for each additional pack in your setup.
System is bi-directional -- changes are apparent whether they are made on your computer or power pack.