PowerRay is an underwater robot which combines virtual reality technology and technologies which are used for unmanned underwater vehicles. In terms of bionics, its shape is inspired by sea ray. The searchlights in the front are similar to their eyes and the contour of the device mimics that of a ray. Equipped with a sonar and a powerful fish finder, the robot can determine the fish distribution and recognise surface shapes. In addition, the user can watch the scenery using VR; videos and photo shoots can be done in real time.