The WBS-670 1RU rack-mountable base station supports up to four full-duplex wireless beltpack. The base station features a full talk/listen headset so an additional person could communicate with the intercom channel while at the base. Rear panel connections allow multiple base station/beltpack systems to operate as one large system. The WBS-670 system includes WBS-670 frequency-agile base station, working with up to four WTR-670 frequency-agile beltpacks. The WBS-670 base station provides full-duplex communications with the beltpacks. The WBS-670 system is perfectly suited for stand-alone operation and also can interface with Clear-Com, Audiocom (Telex), RTS TW party line systems, as well as matrix systems and other 4-wire intercom systems system. In addition to the external intercom systems interfaces listed above, the system provides connections for auxiliary balanced audio input and output. The Clear-Com WBS series has been designed for reliable, efficient operation. Operating in the 518 to 740MHz range, the units operate reliably at line-of-sight distances of 1000ft. The high efficiency beltpacks provides 12 hours of uninterrupted operation using standard alkaline batteries.