EH-01 Audio Details Technical Specifications C-Style Earpiece (Receive-Only)Ergonomically designed C-style earpiece (Receive only). 3.5mm jack plug.Find a dealerHighlightsFunctionsAccessories for EH-01 Included as standard with EH-01Systems that work with EH-01Technical SpecificationsSpeaker sensitivity 108dB ± 3dB @ 1KHz, rated power 10mW, maximum power 20mW, impedance 32Ω± 15% @1KHz, operating temperature -20° to +60°CRelated Products PT580H Plus UL913 BD558 PD988 UL913 PD688 UL913