Plantronics 6-pin digital series Y-training cord with mute for use with Plantronics digital series headsets only allows two headsets to function off one digital amplifier or bottom cable for training purpose.  Also known as the supervisor's adapter cable. Has an in-line mute switch and the Quick Disconnect attaches to 2 Plantronics Digital Series Headsets (not compatible with older H-series headsets). Both headsets can listen, but only one headset have a live microphone. The other microphone is muted.

Key Features:

• For use with Plantronics digital series headsets only
• Easily connects at quick-disconnect QD connection
• Toggle switch mutes one headset, both users can listen, but only one usercan be heard.
• 2 year warranty

• Important:  Compatible with 6-pin devices such as Plantronics MDA526 amplifier,  Plantronics 6-pin DA90 Audio processor  and Plantronics MDA490 only call us you're not sure)

New HP part # 85S09AA

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.