Vexilar SP100 SonarPhone w/Transducer Pod [SP100]SP100 SonarPhone with Transducer Pod The World's Most Portable & Powerful Wi Fi Fishfinder. The SP100 T POD is an ultra portable, Wi Fi transmitter system that has a self contained battery. It can be pulled behind your boat, cast or thrown out from shore. Its unique shape allows the T POD to track in the water perfectly straight at speeds up to 5 miles per hour. The SP100 has a transmit range of up to 100 yards and will run for up to 4 hours on a