Its not for anything that moves after its "lost" outside the BT range i.e.: pets, kids, stolen bicycles...once they move the "anti-lost" pin is irrelevant...for items that stay put it could be helpful if youre willing to put up with the occasional false alarm every time you purposely walk away from your tagged item and get outside BT range...these can get annoying. Having said all that Im glad I bought the item (3 actually) and plan on using them for my keys with "anti-lost" disabled, cant put up with the false alerts. So mine will be used for locating my iPhone which I lose multiple times daily and my keys which I dont lose so much but still need to find when I do...keys and iPhone make the purchase price reasonable, the camera thing is just handy. Heres a call out to the programmer make the tagged locations editable, when I tag something I need to identify it by more than just the automatic address and GPS if its a store I want to return to or a place of interest when Im travelling I need to make note of that on the tag rather than try to remember how much Id like to visit 56.0448392 again.