... Remote Control System comes in with a pre-wired receiver and a 4, 6, 8, 10,12,14, ... range of characteristics:Tiny size and light weightAnti- interferingLong natural lifeFirm and durableImproving efficiencyImproving workshop safetyLong operation ... of transmitter: 2×AA/AAA batteriesPower source of receiver: AC36V,AC110V,AC120V,AC220V,AC380V,AC/DC12V,AC ... , please feel free to contact us. Wireless Pendant