In theory it should work, although keep in mind that with wireless equipment, you VERY MUCH get what you pay for. Having two of the same device (if I’m interpreting what you’re asking correctly) within that close range of each other could make them both unusable as they do not seem to have many channels to select from, and the 2.4ghz band is notoriously busy already
If i was in your situation, I’d scrap the wireless guitar part of the setup and go wired and look at a decent used shure or sennheiser wireless IEM system
Thanks for the feedback!
it doesn’t have to be the same device. I don’t have much knowledge about these things, but would it help to get a 2.4Ghz device for guitar and a 5.8Ghz device for the IEM? just to make sure they don’t interfere with each other?