I have tested all the microphones that I can get a hold of by recording a standard phrase into them.
I have recorded 2 boom mics (gaming microphones on headphones), Bluetooth earphones, conference mic, lapel mic, inline mic and Bluetooth headphones mic.
The V’s mic seems to be better than the nice Sony lapel mic or the very good conference mic, Jabra Speak 510 (mainly good for its speaker, build quality and reliability).
It only falls short of the boom mics in my opinion.
I can’t upload audio files here, so I will just post my OneNote page where I record all the results.
The V is at the bottom (as per chronological order of recording).
If anyone has any better suggestions for sharing then please let me know. I use OneNote for everything now (used to be Evernote) so it is very convenient for me.