ACN-02-P Audio Details Technical Specifications PTT and Microphone cable (for use with receive-only Earpiece)UL913 Mic and PTT button with VOX and 3.5mm Jack Receive-only Earpiece (IP54 )Find 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 HP782 UL913 Intrinsically Safe Two-Way Radio HP702 UL913 Intrinsically Safe Two-Way Radio