What's your critical mass? There’s nothing like having a large and enthusiastic audience singing along with you. CRITICAL MASS puts that magic right at your feet in an easy to use stomp box. Whether you’re pounding out arena rock-style anthems or leading worship at your church, having group vocals on demand allows you to set the mood and engage your entire audience. Choose from “melodic” or “gang” style vocals that suit any style of music with no key or scale input required. • MFSKU 996015001 • UPC 5706622023667