A fish-finding sonar that’s so small it can almost fit in your pocket

The Military Grade Portable Smartphone Fishfinding Sonar from FishHunter is so small, you can almost carry it in your pocket.  It’s shrunk down to fit inside a 8.5″ X 6.2″ X 3.0″ red rubber ball.  It has a rechargeable battery inside, and it comes with a charging stand.  You just float the military-grade sonar transducer in the water, and you’ll see all the fish swimming through its cone-shaped listening field on your smartphone’s screen.  The transducer connects to the smartphone, either Android or iPhone, via Bluetooth.  You’ll get maximum information from a minimal package.  It’s $179 at FishHunter.