Clear-Com KB-701 Encore Remote Speaker StationThe KB 701 remote speaker station connects to a single channel of party line intercom, and operates in half duplex mode, similar to a walkie talkie. It features both an integral speaker and a pushmount electret microphone with mic limiter and a push to talk button. The station may be programmed via two internal dip switches to operate in four different modes, activated by other stations within the intercom system. The different operating modes are