I investigated the BOYA Mini 2 because the pitch is almost insulting: a 5‑gram wireless mic claiming “studio audio” plus AI noise cancellation trained on 700,000 samples… for $35. And yeah—some of the hype is real. The size checks out (tiny case, basically AirPods territory), and the 48kHz/24‑bit spec is legit. Setup is plug-and-play in seconds, and you get both Lightning and USB‑C receivers. Battery is solid too: about 6 hours per mic, up to 30 with the charging case. But here’s the indoor recording problem nobody wants to put in the ads: line-of-sight. Multiple reviewers and tests back it up—Digital Camera World saw dropouts at around 20 feet indoors when you turn away from the camera, and walls make it worse. The “100 meters” range? Sure… outdoors, clear sight line, no obstructions. And the real danger is there’s no onboard recording backup, so when the signal drops, that audio is just gone. My verdict: for outdoor creators, street interviews, and open-space smartphone vlogging, it’s absurd value. For indoor multi-room stuff or anything where you’re moving and blocking the receiver with your body—expect dropouts. Period.