SM08N1 Audio Details Technical Specifications Remote Speaker Microphone With 3.5mm Audio JackEasy to use and compact designed remote speaker microphone with 3.5mm audio jack (for use with receive-only earpiece)Find a dealerHighlightsFunctionsTechnical SpecificationsMicrophone sensitivity -40dB ± 3dB @1KHz, speaker sensitivity 92dB ± 3dB @1KHz, impedance 16Ω ± 15% @2KHz, rated power 1W, maximum power 2W, operating temperature -30°C to +65°CRelated Products TC-700 Analog Two-Way Radio