Key finder, tracker, BT 5.2, IPX67 waterproof rating, works with iOS (Find My app) and Android (Location Center app), range up to 100 m, tracker connects to nearby devices, allowing easy tracking even on the other side of the world, remote sound alert activation for easier locating, includes battery (CR2032) and waterproof adhesive mount with strap, which can be attached to a snowboard, skateboard, bicycle and many other items, tracker does not work with Huawei devices