PLL Tuneable with 81 UHF Frequencies. Licence Free Operation in UK & EU. Pilot Tone & Mute Circuit for Stable Signal. Rack-Mounting Accessories Included. Supplied with Mains Adaptor and 4 x AA BatteriesPower Supply: 12-18Vdc- 500mA Range: 60m Carrier Frequencies: 863-865MHz Frequency Response: 50Hz-18KHz Dimensions: 44 x 409 x 109mm (Receiver) 110 x 67 x 24mm (Transmitter) Weight: 1.37Kg (Receiver) 75g (Transmitter). Dual channel PLL tuneable UHF wireless system with 2 belt pack transmitters and a choice of neckband microphones or lavalier microphones. 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.. radio mic system-beltpack radio mic system-beltpack radio mic