3 Heads hanging from chains wait above patrons heads, then 3 heads drop down from 9′ to 6′ to come face to face with patrons. *** Comes with 3 heads, pneumatics, programmed controller, motion sensor. (Plug & Play). *** Audio package option includes: Digital audio player, Powered speaker and Audio scream effect. *** Foot print for rig is 10″ d x 17″ w x 39″ h. Rig bracket mounts/ slides down on top of maze wall. *** REQUIREMENTS: AC power and Air 100 psi.