This compact microphone has a revolutionary windporting feature that helps lessen background noise from high winds and other severe weather conditions. Audio can pass through the speaker grill even when the microphone port is blocked by water. The coiled cord allows talking and listening without removal from belt or case. Includes Push-to-talk switch, swivel clip and quick disconnect latch. Compatible w/ CP110, CP185, CP200 Series, PR400, CT250, CLS1410, XTN, GTX, RDX