CASTABLE SONAR TURNS PHONES INTO FISHFINDERS.Easily find and catch more fish with the durable STRIKER Cast GPS sonar device. Just cast it out, and reel it back in to view sonar with a 200' castable range via an app display on your smartphone or tablet. STRIKER Cast device streams and displays sonar on a simple phone appDownload the free app for your Apple or Android smart devicesWorks in freshwater or saltwater and even for ice fishingAvailable with Built-in GPS that provides the ability to create custom Quickdraw fishing maps with 1' contoursSelect from easy-to-interpret traditional 2-D sonar and ice fishing flasher modes, with setting adjustments for gain, range and moreTo make using sonar even simpler, turn on fish icons to view graphic images of fish targets and their depth readings10+ hours of rechargeable battery life Includes: STRIKER Cast, Carry bag, 5m Tether, USB charging cable.