Always know where your retainer/aligners are with this TRACKABLE Retainer/Aligner Case by Smile Direct Club! The Case comes with Tile Bluetooth technology built into it. All you need to do is download the Tile app, and you’ll always be able to locate the Case! There are vent holes in the case to always keep things dry, as well as a swivel mirror at the bottom for checking your smile! What makes it even better is the antibacterial lining in the case that keeps it fresh and clean.