ArticleNo/ P/N: PMMN4171A Radiotype: R5 Series RM530 Small RSM with 3.5 mm audio jack and Emergency button (PMMN4171) AI-trained noise suppression. Windporting. IP67. 3.5 mm audio jack. Emergency button. Wideband microphone and speaker. The RM530 features the AI trained noise suppression feature which minimizes the background noise for clearer communication. This is a compact and durable windporting remote speaker microphone. Price request