American DJ's Emerald Scan II is perfect for small clubs or the entertainer on the go. Test your creative skills with a DMX Controller (sold separately) with 5 DMX Channels”control pan and tilt of the mirror and adjust the laser patterns. Or, just turn the laser effect light on and let it run in sound-active mode through its exciting built-in programs. Link multiple units using DMX cable for a mesmerizing laser show.