Rugged, castable sonar device works with the free STRIKER Cast app (compatible with Apple or Android devices) to wirelessly stream sonar, locate fish and display them on your smartphone or tablet Quick, easy out-of-the-box setup: download the app, pair your mobile device with the STRIKER Cast sonar, and start fishing in minutes Traditional 2-D and ice fishing flasher sonar modes stream wirelessly from up to 200’ away with the STRIKER Cast app on your mobile device Performs well in both shallow and deep water Download maps with up to 1’ contours from the Garmin Quickdraw Community Battery life: 10+ hours (battery life may vary depending on usage) on internal USB-rechargeable battery Conserves battery by powering on when floating in water; turns off when removed