Remote Microphone Speaker PMMN4013

External microphone-speaker PMMN4013 is designed for use with portable radios of DP1000 series. Physical characteristics: Microphone type: Omnidirectional, Audio jack: 3.5 jack. Operational characteristic: Volume control: Not available, "Noise cancelling": Available, IMPRES. Environmental requirements: Safety standard: FM, Dust-/waterproof: IP54