ACN-01 Audio Details Technical Specifications PTT and MIC cable (for use with receive-only Earpiece)IP54 compliant PTT button and microphone, supports VOX function and consists of 3.5mm jack socket enabling user to replace earbuds for comfort and hygiene purposesFind a dealerHighlightsFunctionsTechnical SpecificationsMicrophone sensitivity -42dB ± 3dB @1KHz, impedance ≤ 2.2KΩ @1KHz, PTT Cycles PTT cycles ≥100000, operating temperature -20°C to +60°C, IP54Related Products PD982i UL913 PD782i UL913 PD702i UL913 PD702i