PLL Tunable with 81 UHF Frequencies. Licence Free Operation in UK & EU. Pilot Tone & Mute Circuit for Stable Signal. Headset and Lapel Microphone Included. Rack-Mounting Accessories Included. Supplied with Mains Adaptor & 2 x AA BatteriesPower Supply: 12-18Vdc- 350mA Batteries: 2 x AA (Beltpack) Carrier Frequency: 863-865MHz Range: 60m Dimensions: 44 x 198 x 190mm (Receiver) & 110 x 67 x 24mm (Transmitter) Weight: 710g (Receiver) & 75g (Transmitter). Single channel PLL tuneable UHF wireless system with belt pack transmitter 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 4 RU105 systems can be operated together on the EU licence-free band.. radio mic-radio microphone-beltpack radio mic-lapel mic