so, i'm planning on getting a wireless system for my guitar. i was looking at the AKG WMS 40 PRO/Guitarbug UHF Wireless Guitar System and it gives me these choices when it says "Please select an option:"

CH 60B
CH 54B
CH 58
CH 54
CH 58B

my best guess is that these are frequencies, in which i don't think it would make a difference which one i choose, however i would like somebody else to confim this.

thanks in advance!!