POA101-Ex Audio Details Technical Specifications Atex Intrinsically Safe Microphone EarpieceComplying with requirements for instrinsic safety this single speaker microphone earpiece enables easy and safe operation whilst working in challenging environments.Find a dealerHighlightsFunctionsTechnical SpecificationsMicrophone sensitivity -34dB ±4dB @1KHz, PTT cycle ≥100000, speaker sensitivity 82dB ±2dB @1KHz, impedance 32Ω ±15% @1KHz, rated power 200mW, maximum power 500mWRelated Products PD792i-Ex