Meet PowerDolphin by PowerVision: a marine drone with a 4K camera, 1000m remote control and a customized bait container that lets you explore the world under water and enjoy a better fishing experience. Its LED headlight is available in 4 different levels.
PowerDolphin comes with the PowerSeeker fishfinder system. The camera has a 132 degree wide angle lens. The drone can be operated via its controller or a smartphone. PowerDolphin can troll a hook and bait behind it, drag rescue rings, and do a whole lot more.
More info is available here.