21010100020 CONN. MICRO JACK ACCES.FLANGE SET M12 21010100020 is a premium microphone jack accessory that featuring a Flange Set type made of nan material. Designed in M12 shell size, available in Silver color. Manufactured by HARTING in the M12 series. Compliant with ROHS standards and available in BULK packaging. Perfect for enhancing connectivity and durability in professional audio systems.