This underwater drone uses sonar to track down fish and film it in 4K

Fishing has never sounded particularly enticing to me, but PowerVision's new underwater drone certainly fires me with enthusiasm. Unveiled at CES this week, the PowerRay is a submersible robot that uses sonar technology and 'internal fish luring lights' to detect and attract fish up to 30 meters under water. Designed to "redefine recreational fishing," the drone leverages its powerful 'fishfinder' component to track down fish and film it in 4K. The device is also equipped with a Wi-Fi connection which lets you beam video and images captured on its integrated camera straight to your smartphone via its dedicated app for iOS and Android. What is even…

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