... .VII:Waterproof:Under water 5~10metersVIII:Long distance wireless remote:100m,500m,1000m,2000m,10kmWe can design/produce 3 ... functional wireless remote control systemindividually or design all the 3 functions together.One is self lock model,anotheris no lock model,the ... and negative wireless control 3):Commutative lock model:[For example 4ch wireless switch] Press remote button A,the receiver relay A ...