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Amazon [amazon.com] has Garmin Striker Cast, Castable Sonar, Pair with Mobile Device, Display Fish on Smartphone or Tablet for $ 79.99
Shipping is Free[LIST][*]About this item[LIST][*]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