Replace your microphone jack. Use this replacement kit to quickly and easily replace the mic jack on your David Clark headset. H10-30, H10-36, H10-76, H3330, H3332, H3335, H3340, H3341, H3342, H3370, H3390, H3391, H3392, H5010, H5020, 12304G-07, 40706G-01 and 40838G-01.