Do we need different wireless packs for every country we visit? Follow The Senheisser G3 unit is universal so you can use it to control your personal mix no matter what country you're performing in. And please note that some countries may require an operational license. Learn more here. Related articles What if my music doesn’t sound right? Do I need to invest in a wireless transmitter system or do I have other options? Will venues have a wireless system ready for me? How do I use wireless transmitters with my UE Custom In-Ear Monitors? Are UE Pro In-Ear Monitors good for a click track?