I know they are able to do about 56 or so (but only 1 at a time)
I'm just looking for the frequency they come pre-programmed with. I will be employed at a local theatre as an usher, and am able to use my own radio (ex600) and I'm just not sure on what the frequency/ PL/DPL tone is on the preset.
These are the radios they use:

Thanks for any help on this.
Edit: These are UHF radios