Tile is a small tracker that you can place on an item and never loose it again. The tile connects using Bluetooth. the letter e in the tile logo on the tile is the turn on button. Around the side of the tile is a slot that is used for sound.  It comes with a sticker so that you can stick it to things but also it has a built in loop so that you can put it around a key chain. Tile has an app so that you can use your device to find the tile. You can see on a map where the tile is or you can hit a button to make the tile make noise. You can use it on your phone, computer, wallet, keys and more.

https://www.youtube.com/watch?v=cZfKDGi99ok

Video credited to Tile