The smallest water proof anti-lost locator, iOS/Android friendly DESIGN INSIGHTS * IP67 waterproof * Smallest tracker on the market at 2.3cm x 1.7cm x 0.3cm * Will "Ring" and notify you of your missing item once 20 feet away from the item * It pairs with our free Skyborne app * Finds and locates your valuables via a Bluetooth tracking system * Compatible with the following Skyborne products: iTravel MINI®, iTravel Folio 3.0®, Hyde N Keys® * Replaceable battery * Three-year standby time * Adopts ultrasonic sealing * Multi-use for your keys, wallet, passport, pets, and any other important items