... ,10ch,11ch,12ch,13ch,14ch and 15ch wireless remote control switch,AC90v~AC270v or DC6v~12v voltage working circumstance,100m~10km ... :Under water 5~10metersVIII:Long distance wireless remote:100m,500m,1000m,2000m,10kmWe can design/produce 3 different functional wireless remote ... model.Explanation:1):Self lock model: [For example 4ch wireless switch]Press remoter button A first time,the receiver relay is ...