GM series GM420-C Gooseneck Microphones are compatible with Shure DCS 6000 and DDS 5900 Conference Units. They feature Shure Microflex capsules for high quality audio capture in meeting and conference spaces where communication is critical. Available in three lengths, each Gooseneck Microphone provides highly precise and flexible placement, with an integrated top LED light ring to indicate microphone activity. All variations also feature Shure CommShieldr RF immunity, ensuring dependable, reliable performance regardless of venue.