These aqua jelly and air jelly fish are so delicate. Altough they are robot, these jelly fish dance smoothly and elegantly whether in water or air. The aqua jelly fish is built in an electric drive and an perceptive mechanical system. There are several robots autonomously running with a communication system gathered with Zigbee short-range radio on the surface. And the LEDs will turns on when the jellys are under the water. For the air jelly fish, the remote controlled machine can slipped through the air by getting a helium-filled ballonet with the center electric drive and a suitable mechanical system. I think the designer has challenged himself to make his art either swimming freely in the water or flying ligheter than the air.