... is 1 channel wireless transmitter Technical specification: Battery: 27A 12V Channel: 1CHWe can design/produce 1ch,2ch,3ch,4ch,5ch ... and 15ch wireless remote control switch,AC90v~AC270v or DC6v~12v voltage working circumstance,100m~10km meters.Our wireless remote ... car multi-route alarm;6:Motor rotation control.VII:Waterproof:Under water 5~10metersVIII:Long distance wireless remote:100m,500m,1000m, ...