American Dj Rotoballs Tri Led Dual Spinning Led Color Balls Dynamic centerpiece using super bright Tri LED technology which showers a venue with light in 360 degree movemnet variable speed on the unit itself as well as remote controllable when used with the UC3 remote (sold separately) Color changing inside the spheres is controlled by sound as well as built in programs can be hung or mounted ontop of speakers or run on the floor, all that is needed is on/ off power American DJ RotoBalls Tri LED High Powered Centerpiece, Dual Ball Tri Colored LED Powered Effect Light Great For Large Areas, High Energy