SM13N5 Audio Details Technical Specifications Remote Speaker MicrophoneIP55 compliant and noise canceling microphone enabling clear and consise audio transmission in noisy operating environments. This remote speaker microphone also has a 3.5mm audio jack to plug additional earpiecesFind a dealerHighlightsFunctionsTechnical SpecificationsMicrophone sensitivity -52dB ±3dB @1KHz, speaker sensitivity 91dB ±3dB @300Hz to 3KHz Average, impedance 16Ω ±15% @1.5KHz, operating temperature -30°C to +65°CRelated Products TC-700 Analog Two-Way Radio