I love my ZOMM. It was a little pricey but NOTHING compared to replacing a lost iPhone. And with my ZOMM, I never get more than 30 feet away from it without it letting me know. Now The New York Times has given it a nice review and you can read the review here. This product was invented by Laurie Penix and her husband - who live in Tulsa; you can follow Laurie on Twitter (@theZOMM).