I'm not sure entirely, but IIRC it uses a chip to position the headphones spatially. Without the chip, the headphones wouldn't know which direction to set as "n

I'm not sure entirely, but IIRC it uses a chip to position the headphones spatially. Without the chip, the headphones wouldn't know which direction to set as "north" even with a gyroscope. Found link: https://locatify.com/blog/what-is-the-new-apple-u1-chip-and-why-is-it-important/ https://locatify.com/blog/what-is-the-new-apple-u1-chip-and-...