After 8 seconds without sound laser will be shut down automatically. Dynamic pattern speed adjust Laser on/off. More than 300 beam show and patterns were inbuilted. Disco, Pub, Bar, Clubs, Large stage, Entertainment center, Casinos, Family party etc.We just sell high quality laser lighting. Appericate to receive any comments of yours. Please give us your 5 star feedback if you are satisfiled with our products and service. The item "Brand New Quad RGVY laser projector DMX disco stage DJ laser light show system" is in sale since Tuesday, August 19, 2014. This item is in the category "Musical Instruments & Gear\Stage Lighting & Effects\Stage Lighting\ Single Units". The seller is "bluesky-007" and is located in door to door. This item can be shipped to United States, China.