Binaural recordings can also be made with small in-ear mics (be careful, they'll pick up clicks from your eardrum when you swallow), or a close approximation by

Binaural recordings can also be made with small in-ear mics (be careful, they'll pick up clicks from your eardrum when you swallow), or a close approximation by clipping omnidirectional mics to your glasses. Or, if you're made of money, there are purpose-built dummy heads like this: https://www.neumann.com/en-en/products/microphones/ku-100/ https://www.neumann.com/en-en/products/microphones/ku-100/