The Chauvet DJ 4BAR USB is D-Fi USB compatible for wireless master/slave or DMX control, it also includes a wireless footswitch that can control multiple units. Create synchronized light shows using built-in automated programs with the optional IRC-6 remote. Features: Complete wash lighting solution designed for mobile entertainers Out of the box wireless control with included footswitch that controls multiple units Achieve total room or stage coverage with 4 individually adjustable heads D-Fi U