Plantronics Y training cord with mute switch (part #27019-03) for use with Plantronics H-Series Headsets; allows two headsets to function off one amplifier (M22). Also known as the supervisor's adapter cord. Comes with in-line mute switch. Quick Disconnect attaches to two Plantronics Headsets (H-series, P-Series or Plantronics Cisco Headsets). Both headsets can listen, but only one headset have a live microphone. The other microphone is muted.

Key Features:

• For use with Plantronics H-series headsets, Plantronics P-series Headsets as well as Plantronics Cisco Headsets
• Easily connects at quick-disconnect connection
• Toggle switch mutes one headset
• It can also be used with Plantronics Polaris Headsets as well as any Plantronics Headset with a QD (Quick Disconnect) end

Old Poly part # 27019-03

New HP part # 85S07AA

Important ​Note: NOT compatible with wireless headsets

Note: The red toggle switch allows the supervisor to control which microphone is live and which is muted.  So only one microphone is live at any given time.