The secret scare tactic of professional haunts is the element of surprise. Hit your guests with a blast of air that's sure to make them JUMP! Industrial quality air blaster is activated by an included motion sensor, and also includes a strobe light for a completely disorienting experience. Requires AC power and 100-125 psi air compressor. 16 inches x 14 inches. PLEASE NOTE: This item is a Special Order and may take 2 to 4 weeks for delivery. Call us for availability if you need this sooner.