A new gadget hopes to help you keep tabs on your important items before you lose them.
The O is a small, electronic tracker that pairs with an app on your iPhone. You place it on (or attach it to) something you don’t want to leave behind, and you’ll get alerts if you do. It’s kind of the same “You forgot your phone” feature that we were hoping to get out of the Apple Watch when it strays out of range of its paired handset, but these little pucks are cool, too.