? Product Type: YT2K-B button list: start, stop, previous, next (signage text can be customized, such as: forward, reverse) each remote system consists of a transmitter, a receiver, and multiple sets of the same Site work will not interfere with each other. ? The receiver only two output switch, no power output. ? Function keys are jog mode, press pass, loosen off; also can be customized into self-sustaining mode, press pass, then the break. ? Interlock between any two function keys. ? Receiver output switching capability: AC250V 5A, DC30V 5A. ? Receiver Operating voltage: DC12 / 24 / 48V, AC36V / 48/220 / 380V.