Chauvet DJ LED Lighting B250 Bubble Machine with Removable Fluid TankChauvet DJ LED Lighting B250 Bubble Machine with Removable Fluid Tank The CHAUVET DJ B 250 is the ideal mid level bubble machine for mobile DJs, event pros, and entertainers who need powerful output without sacrificing portability. Designed to fill larger areas with an impressive stream of bubbles, the B 250 is built with a durable plastic casing that prevents rust and keeps the unit lightweight for easy transport and setup. Its user friendly design