The world's best-selling tracker is ideal for anything's Put it on all your thing's and find them faster. Mate uses a replaceable CR1632 battery which runs for a year with no upkeep, and then is easy to replace yourself. Mate works with Amazon Alexa and Google Assistant to make finding easier than ever. Download the free Tile app and follow the simple in-app steps to activate your Mate. Use the Tile app to ring your device if nearby, or see its location on a map if far away. Double press the Tile button on your device to make your phone ring even when it's on silent. With millions of users all over the globe, the Tile community can help you find your thing's fast wherever they are. Share it with a roommate or friend to increase your finding power. Range reaches 200ft. Dimensions: 35mm x 35mm x 6.2mm. Weight: 7g. Price includes one location of custom logo on Mate and regular packaging, plus custom sleeve over packaging.