21010000003 CONN. MICRO JACK ACCES.CAP (COVER), SEALING M12 21010000003 is a premium microphone jack accessory that featuring a CAP (Cover), Sealing type made of Polyamide (Pa), Nylon material. Designed in M12 shell size, available in Black color. Manufactured by HARTING in the M12 series. Compliant with ROHS standards and available in BAG packaging. Perfect for enhancing connectivity and durability in professional audio systems.