This microphone is ideal for small to medium-sized stage performances. I’ve used it for trumpet and trombone, and it’s always worked great. Just remember to press the charging button on the case.
However, I wouldn’t recommend it for professional recording. The sound of the valves comes through, and when I used it with Ableton, the waveform appeared inverted compared to other mics, I don't know what it could be related to.
Also, if you try to use it with a DPA 4099 mic through a mini-jack adapter, it causes constant noise. Despite claims from Better Sax on YouTube that it should work fine, this wasn’t my experience.