The Can You Imagine Lumin disk is perfect for any room and for any age, is perfect for any light enthusiast or party with friends or by yourself. This super cool disk responds to your touch, your voice, and dances along to any song you are listening to. The plasma technology in this little light creates an amazing display of lights with the mini electronics inside. The exciting light show includes two different modes: straight plasma floor and sound responsive. Battery operated so it's perfect to take anywhere you go and can hang on a wall with the built-in keyhole hanger. All you need is four AA batteries, (not included).