Pliant Technologies CB2-900 CrewCom 900MHz 2-Channel Base StationThe CrewCom CB2 1 RU BaseStation features 2 channels, a 900MHz internal radio,, and supports up to six CRP 12 900 Radio Packs. The system also provides external connectivity via two 2 Wire or two 4 Wire ports. A maximum of two CB2 BaseStations can be linked together. (Note: The CB2 BaseStation is ONLY compatible with the CRP 12 900 Radio Pack, is NOT compatible with any CrewCom CRP 22 or CRP 44 Radio Packs, and is ONLY available in North America.) The