>> in addition to being able to control individual devices in your home, with home kit you can group devices and changes into scenes and then with siri integration, you can say something like, get ready for bed and be assured that your garage door is closed, your door is locked, thermostat is lowered and lights are dimmed. that's homekit. >> reporter: now, i don't know about you, brooke, but i'm okay with getting off the couch and turning off the lights. >> i feel like i'm going to need to have a better relationship with siri. we are not very close. i'm still old school like typing away. maybe siri and i will get to know each other better. it sounds kind of impressive. >> reporter: well, it is impressive. i think this would come in handy, say, if you're on the road and you want to turn off the lights, you forgot something