The Olympic swimmer and recently announced Dancing With the Stars competitor has teamed up with ROBOCOPP, a company that makes personal security devices. He demonstrated how to use the device in a video posted to Instagram, saying, "I've been traveling a lot lately. We all like to have fun, but it's a good idea to stay safe. I don't go anywhere without ROBOCOPP."
"It's this tiny device—all you do it pull the pin," he said, showing how in the clip, "and it releases a startling alarm that can get you out of a bad situation."