I recommend primo EM272 microphone capsules for use with https://github.com/hcfman/sbts-aru https://github.com/hcfman/sbts-aru. They are high quality, very sens

I recommend primo EM272 microphone capsules for use with https://github.com/hcfman/sbts-aru https://github.com/hcfman/sbts-aru. They are high quality, very sensitive with high signal to noise ratio, lauded for nature recording use cases. They can be bought assembled for around 65 euros in the Netherlands. However these capsules are often found in much more expensive equipment.