Symetrix ARC-SW4e Push Button Wall Controller for Symetrix DSP Systems (White)The ARC SW4e is features four switches that are programmable as momentary, latched or radio buttons. ARC SW4e provides simple control over mutes, source selection and preset triggering. Corresponding tri color LEDs provide user feedback. LEDs may be linked to buttons, or, LEDs and buttons may be programmed independently. ARC SW4e has an idle mode option for dimming in light sensitive environments. Hardware lockout pins support an installer supplied