RU210-H Dual Multi-UHF Handheld SystemDual channel PLL tuneable UHF wireless system with 2 handheld transmitters. The receiver unit is compatible with standard 19" racks using the included rack ears and front mounting antenna accessories. The RF carrier frequency is selected on the receiver and synchronized to the transmitter via infra-red at the touch of a button. Up to 2 RU210 systems can be operated together on the EU licence-free band.PLL tunable with 81 UHF frequenciesPilot tone & mute circuit for stable signalRack-mounting accessories includedSupplied with mains adaptor and 4 x AA batteriesLicence free operation in EU