Lapel Speaker/Mic AccessoryThe Cobra Handheld Remote Speaker Mic puts the audio and microphone of your handheld VHF within easy reach. The loud speaker is controlled by the radio's volume control. Having it closer to the ear means you will hear your important radio transmissions easier. Features:Compact DesignScrew-In Audio ConnectorRotating Spring Loaded ClipQuality ConstructionEarpiece Output JackCompatible Devices:MR HH325MR HH425MR HH125Cobra GMRS radios (using the included adapter)