The Roost smart battery goes into your existing smoke detector and alerts you via your phone when your smoke alarm activates. It also gives you one-touch access to important emergency numbers (police, fire and so on) and notifies you weeks before the bat
This is pretty awesome! The Orb --- mobile headset doubles as a ring and can be used 30 feet away from your phone. It vibrates if you get a call, but also has a voice-to-text device so you can read messages on your ring.