Motorola RMN5089 Commander™II Remote Speaker Microphone
Model Number:  RMN5089
The Commander II™ Remote Speaker Microphone features Windporting Technology - which dramatically lessens background noise in windy and other severe weather conditions. Audio can pass through the speaker grill even when the microphone port is wet, ensuring clear communication at all times. This microphone offers a channel selector and 3.5mm audio jack.