... ,6ch,7ch,8ch,9ch,10ch,11ch,12ch,13ch,14ch and 15ch wireless remote control switch,AC90v~AC270v or DC6v~12v voltage ... 2:Home electric appliance control;3:Agricultual long-distance control;4:Industrial long-range control;5:Door wireless open/close,car multi-route alarm ... Jumper is OFFpossition, when press button A on the transmitter, receiver channel A goes on 2 secondsthen goes off automaticaly...Same ...