A few hours after the DJI Mic Mini, a second certified wireless mic set. One setting to flip — Channel Routing to Split in RØDE Central — and one small thing to know about its name.

One iPhone, one receiver, two clip-on transmitters: one speaker per channel, 19.6 dB apart, zero alignment. The evening it took — the receiver that isn't called DJI, the channel count iOS won't reveal, and the crash.

A phone in front of each speaker, and the loudest track is the person talking. Two real recordings, three traps — two of them my own measurements lying to me — and one lesson about trusting an estimator.