ArticleNo/ P/N: PMMN4024A Radiotype: DP3400, DP3401, DP3600, DP3601, DP4x00, MTP6000, MTP850S/830S Remote Speaker MIC, Windporting RSM, FM-TIA Rated ,with audio jack Remote speaker microphone with audio jack. IP54, FM and UL/TIA 4950 rating. Price request