IMPRES Industrial Noise Cancelling Microphone with threaded 3.5mm audio jack -UL Approved. (when connected to the XPR 7550 IS CSA radio, it should only be used in digital mode

Compatible with: 

Motorola often changes the product SKU name. This product may have also been known as NNTN8383a, NNTN8383b, NNTN8383c, NNTN8383d, NNTN8383e, NNTN8383f, NNTN8383ar.