It's going to be powered by a battery pack that is connected to a long cable and goes in your pocket. No one's ever heard this pitch from Apple. Oddly, iPad apps seem to be where Apple is mostly focused. The headset will have two ports on it, one USB-C for data input and output,. One is the charger that goes that battery pack. You might be able to use it as as an external monitor for your Mac - terrific.