... Noise cancelling,Waterproof. 3.Connector Optional. Handheld wired microphone for two way radio NAMCKS is engaged in the Research & Development and ... we are a manufacturer of telecommunication products, such as voice-activated headsets, shoulder microphones, bone conduction earphones, hand microphones, two way radio and ... WITH ME! handheld speaker microphone for interphone/walkie talkie/two way radio