Like others have said, Siri.
But I can see why they've done it as once you remove that cable, you've nowhere to put a set of physical controls on, other than the earbuds themselves. Which leads to larger earbuds as we've already seen with other similar cordless ones. I'm guessing that was the design brief Apple had on day one - keep the same size earpod and make them truly wireless.
Its no a deal breaker though...
I still think the fit is an issue. Even if they'd included some silicon covers of different sizes, the chances of a great seal and improved sound quality would be increased for the majority of users and they'd also lessen the worry of losing one by it falling out. I think that's the one thing that I've has an issue with since they were announced, that this is where Apple is going for form over function.
Other colours would be nice too.