SAN FRANCISCO—Apple Senior VP Phil Schiller took the stage at Wednesday’s iPhone event to announce the news most tech geeks had been expecting: the iPhone will leave the 3.5mm headphone jack behind. It was Schiller’s job to justify why Apple was doing so, and he defended the company’s decision by citing “three reasons to move on—and one word: courage.”

Schiller explained to the San Francisco event crowd that Apple would push the Lightning port standard for wired headphones and push a new proprietary wireless standard, driven by the new “W1 chip” in iOS devices, which Schiller called “Apple’s first wireless chip.”

The 3.5mm port, on the other hand, has to go, Schiller said, because “we can’t justify an ancient single-use port.” He described the amount of technology packed into iPhone, saying each element in Apple’s phones is “fighting for space, and it’s at a premium.” And while every iPhone 7 and 7 Plus will include a Lightning-to-3.5mm adapter, Schiller was a lot more bullish about the company’s wireless-audio standard.