That's actually how my headphones (sony 1000xm3 I think they are) can be paired, there's an nfc chip on one of the sides which if you tap your phone to will tur

That's actually how my headphones (sony 1000xm3 I think they are) can be paired, there's an nfc chip on one of the sides which if you tap your phone to will turn on bluetooth, turn on the headphones, connect, and the headphones will beep and say bluetooth connected. It's the most seamless wireless connection I've had with bluetooth