This mobile has a very unique motion. The motor is in the base of the mobile, and it causes the mobile arm to slowly sway back and forth from side to side. As the arm does this, the two translucent horizontal pieces rotate in a natural motion, much like a calder mobile. The mobile has 3 characters a large colourful fish, a seahorse and a jelly fish. There are two music selection buttons on the front of the mobile a classical button that plays Bach, Beethoven & Mozart and an ocean sounds button. Age range birth+.