The Clear-Com HelixNet HLI-4W2 provides level and VOX control — and more — for the HMS-4X digital main station. An important part of a networked intercom system, this dual 4-wire interface includes call signaling; it also accommodates 12 partyline channels and distributes program audio with independent level controls. At Sweetwater, we appreciate the HLI-4W2's flexible cabling, fast front-panel control and configuration, easy browser configuration, and convenient plug-and-go design with auto discovery.