EHN26-P Audio Details Technical Specifications C-style Earpiece with In-line PTT and Microphone (Black)UL913 C-style Earpiece with microphone and in-line PTT buttonFind a dealerHighlightsFunctionsTechnical SpecificationsMicrophone sensitivity -42dB ± 3dB @1KHz, speaker sensitivity 84dB ± 4dB @1KHz, impedance 32Ω ± 15% @1KHz, operating temperature -20°C to +60°CRelated Products HP782 UL913 Intrinsically Safe Two-Way Radio HP702 UL913 Intrinsically Safe Two-Way Radio