Button TrackR is the latest creation from Phone Halo. The clever guys at Phone Halo have already brought us the credit card sized Wallet TrackR which helped find lost wallets, but now they have gone even smaller. The Button TrackR ($TBA) is the size of a small coin and can be attached to just about anything you want.
The Button TrackR pairs up to a companion smartphone app and will send you a buzz when you leave an important item behind. It is possible to keep track of 10 items at once, so you will always be able to keep a close tab on your money, keys, phone, or hell, even your wife! Come on, you know you thought the same. via