Galaxy Audio TV5-REC Single Receiver for Traveler TV8 & TV5X ModelsGalaxy Audios Single Receiver for the Traveler Portable PA Systems will allow you to use a wireless microphone with a receiver card. This now means, with the Single Channel Receiver loaded into your Traveler System, you can operate a wireless microphone! With a Single Volume control, you can easily set the wireless microphone, and with 96 selectable frequencies each, you are sure to find that the Single Receiver will work great for your next event.