With the release of the iPhone 6S back in 2015, Apple took a cue from Android's ability to always listen for a key phrase. Not only can users activate it without needing to press a button, Siri on the new device can only be summoned by the phone's owner. While it may not be as accurate as fingerprint authentication, we found that it still works well. And, as you probably can guess, invoking Siri this way can also activate the beatbox mode. A feature even BB-8 can get excited about.