SM26N3 Audio Details Technical Specifications Remote Speaker Microphone (with emergency button)IP67 compliant remote speaker microphone with emergency buttonFind a dealerHighlightsFunctionsTechnical SpecificationsMicrophone sensitivity -42dB ±2dB @1KHz, PTT cycles ≥100000, speaker sensitivity 97dB ±3dB @300Hz to 3KHz average, impedance 20Ω ±15% @1.5KHz, rated power 2W, maximum power 3WRelated Products PD982i UL913 PD782i