Motorola speaker microphone, model number PMMN4022A. This speaker mic is water resistant and comes with the "Windporting Technology" which decreases background noise from high winds and other extreme weather conditions. Mic includes push-to-talk (PTT) button, 3.5mm earjack, quick disconnect latch and swivel clip. Microphone is in excellent shape and guaranteed fully operational.
Radio models compatible with this mic:
EX500, EX600, EX600 XLS, PRO7150 Elite