SM11R1 Audio Details Technical Specifications Portable Microphone with aluminium front panelIP54 compliant portable microphone with aluminium front case, providing high quality and reliable communication in challenging environmentsFind a dealerHighlightsFunctionsTechnical SpecificationsMicrophone sensitivity -45dB ±3dB @1KHz, impedance ≤ 2.2KΩ, operating temperature -30°C to +65°CRelated Products TC-610 Analog Mobile Radio TC-600 Analog Mobile Radio