... HS series Remote Control System comes in with a pre-wired receiver and a 4, 6, 8, 10,12,14,16 channels ... system has a range of characteristics:Tiny size and light weightAnti- interferingLong natural lifeFirm and durableImproving efficiencyImproving workshop safetyLong operation distance up ... ×40mmFor more information, please feel free to contact us. Wireless Switch