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This Underwater Drone Detects and Films Fish In 4K

Apr 19, 2017 at 3:29 PM ET

The latest drone to hit the water doesn’t just take high-quality video – it can help you fish. The PowerRay is tethered to a base station by a 230-foot “umbilical cable” and can reach depths of up to 98 feet. Its sonar detects fish and registers the exact depth of the water. The drone’s 4K footage can be streamed on your smartphone or tablet.  But the PowerRay isn’t cheap: it starts at around $1,700.