We've all been there. You're in a hurry to get out the door, and you can't find your keys. You just saw them. They were on the counter, or was it your dresser? And it's in that moment that you think about attaching some device to your key ring that will let you find them, regardless of how well-hidden they might be. Well soon, Amazon might let you find your keys just by asking where they are, out loud.