system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: I'm not supposed to buy wireless surround speakers because the wireless signal is unreliable and the timing/phase might be off, right? Yet modern pop music arena concerts use wireless mics. What gives?
gpt
They have a professional sound tech to ensure, by hand, that everything is set up right -- and then it only needs to work for a few hours -- and they use the best equipment, not price-sensitive consumer stuff.