Price $5 to $75 (1)$75 to $80 (1)$80 to $100 (1) Sound Mode Stereo (2)Mono (1) Host Interface USB Type C (2)Mini-phone (3.5mm) (1) Features Noise ReductionPlug and Play (2)LED IndicatorPlug and PlayUnified CommunicationIn-Line Controller (1) Earpiece Type Binaural (2)Monaural (1) Product Model 20 (2)30 II (1) Weight (Approximate) 142.5 g (1)171.1 g (1)