Do you have a wanderer in your family, be it a little kid, a rebelling teenager or a fading grandparent? The Ekahau T301W Wi-Fi wristband is designed to keep track of anyone who might end up disappearing. It uses Wi-Fi to pinpoint their location, allowing you to locate them within 5 feet. Of course, it won't work when not near Wi-Fi, nor will it work if your stupid stepson takes it off because he never listens to anything you say and doesn't respect you. But I guess it can't solve all your problems for you.