The Wireless GO II gives you the option to either record in 'Merged' or 'Split' mode (toggled by pressing and holding the pair and gain buttons on the receiver for three seconds or via RØDE Central). This allows you to record each transmitter onto separate channels on the output ('Split' mode) or combine the two into a single output ('Merged' mode). When it's in 'Split' mode, there will be two output level meters, when it's in 'Merged' mode, there will be just one. Read more about this at the Wireless GO II User Guide.