@jgamble @mattblaze @adafruit I'm not much of a Flipper Zero user but I've been a professional audio engineer for live events for over two decades, and I've done a lot of complex RF coordination over the years. According to Flipper Zero documentation, it doesn't even transmit in the sub-1GHz ranges where pro audio gear lives. Unless the RF environment is so crowded that they need to make a lot of use of the 900MHz band (which is *very* unusual) it shouldn't even be able to touch any frequencies the audio is transmitted over. And even if it could, wireless mics these days are digitally encrypted, the worst you'd be able to do is create a signal strong enough to overwhelm the transmitter and cause dropouts, it's not like you'd be able to inject your own audio instead or anything like that. Pretty much anything else control wise would be on a conventional closed 2.4GHz wireless network, with whatever security their router(s) have. No AV tech who knows what they're doing is concerned about a Flipper Zero messing up their show. Unless maybe drones are involved, I admit that's something I don't know much about. If there's a drone show attached to the event, it's possible they might be concerned about that. But I really have no idea.