Smart Fish Finder

The Smart Fish Finder is a sonar bobber that attaches to the end of your line. Simply cast it into the water. Within seconds, it sends an alert to your phone via a free app, to tell you where the fish are, how deep they are and how big they are. Works in saltwater and fresh water up to 135 ft. deep for shore fishing, pier fishing, canoe fishing, ice fishing and night fishing. Operates up to 10 hours on a full charge.