Never lose your phone or keys again. Motorola Keylink pairs with any Android or iOS smartphone using the Motorola Connect app. Make your phone ring anywhere up to 100 feet away. Or use the app to see where your keys are on a map. Keeps your Motorola or Droid smartphone unlocked when your keys are nearby—no need to enter a password. Keylink can get a little wet. Full year of battery life using a replaceable standard coin cell batter.