SM24N2-Ex Audio Details Technical Specifications Large Atex multi-functional PPT with remote speakerDesigned with double PTT and rugged shape providng stable operation.Find a dealerHighlightsFunctionsTechnical SpecificationsMicrophone sensitivity -50dB ±4dB @1KHz, PTT cycles ≥100000, impedance 2.2KΩ speaker sensitivity 94dB ±3dB @1KHz, impedance 20Ω ±15% @1KHz, rated power 1W, maximum power 2WRelated Products PD792i-Ex