This is a very cool idea. It looks like a tennis ball, but it is a portable WiFi fish finder. The Vexilar SonarPhone T-Pod Sonar/Transducer can be cast, thrown from shore or pulled behind your boat. The SP100 has a single beam, 30-degree wide-angle beam signal using a 125 kHz transmit frequency. It has a self-contained battery that turns off automatically to save power, is charged through a computer USB port or the included USB wall plug charging cube and lasts up to 4 hours on a single charge.
The website claims the SP100 T-POD is the most powerful portable WiFi transmitter in the world and will rival most high-end sonar on the market. It uses patented WiFi signal technology to transmit a full-colour, HD-quality signal right to your smart device. And you don’t need cell phone coverage to use it; the SonarPhone creates its own WiFi hotspot so you can share your signal with as many people as you wish; the software App is downloaded for FREE from the App Store or Google Play and works with both Android and IOS systems.
It retails for $130, and the only downside I can see is that it has a maximum depth range of 120 ft.
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