Galaxy Audio's TV5-DREC dual receiver for the traveler portable PA systems will allow you to use two wireless microphones with one receiver card.
This now means, with two Dual Channel Receivers loaded into your Traveler System, you can operate up to FOUR wireless mics at one time!
With Dual Volume controls, you can easily set the wireless microphones, and with 96 selectable frequencies each, you are sure to find that the Dual Receiver will work great for your next event.