Production Intercom Inc. USA BP-2 with two Telex headsets

Pulled from a working system.  Headsets included, 4 pin XLR style connector.  Specs below may be out of date, this unit is probably 15 years old or older.   Features: Two channel portable headset station Speak and listen to one or both channels Two call buttons with two signal lights Adjustable volume and sidetone levels Performance:  The BP2 portable headset station may be worn on the belt or hung on the wall by its sturdy belt-clip. Soft plastic strips on the under side help hold it in place when set on top of a console. The matte black finish minimizes visibility. Both are true 2-circuit units, permitting the user to talk and/or listen to either or both circuits simultaneously. Sep a rate controls are provided for each circuit. The BP2 mixes the incoming audio from both circuits to one ear phone. The top (or front) panel contains controls for switching each microphone circuit on and off, for controlling each listening level, and for signaling on each circuit. They are easily ide