Go handsfree on the job site or among the crowd with the Cobra Radio Earpiece with Boom Microphone. Easy plug-in power gives the Cobra Radio Earpiece with Boom Microphone simple operation. Just plug it into the radio, place the earbud in your ear, and place the microphone about 2 from your mouth for convenient communication and Push-to-Talk (PTT) functionality. Cobra radio accessories make your work and your life easier. Color: Black. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Headsets.