Core Sound - One second-order ambisonic microphone and five first-order. Which would you prefer to use under your 360VR camera? (Hint: the small ones) Which are individually calibrated for location cue precision? (
Zoom VRH-8 Ambisonic Mic Capsule for H8 – Alto Music
Best Ambisonic Microphones (First-Order) — Acoustic Nature
MiniDSP ambisonic microphone with Dirac simplifies spatial audio recording - Audio Media International