The Garmin Striker Cast is a castable sonar device - without GPS, this device pairs with a free app to stream and view sonar on Apple and Androids. The Striker Cast has a quick and easy setup and has a 10+ hours of rechargeable battery life. The Garmin Striker Cast gives you the option to choose traditional 2-D or ice fishing flasher modes. This product is easy to use, just cast it out, and reel it back in to view sonar with a 200 feet castable range on your app display on your smartphone. Buy yours today at Sawyer's Country Edge.