Price Impedance 32 Ohm (3)150 Ohm (1) Cable Length 7.5 ft (3)3.1 ft (1) Host Interface USB (3)Quick Disconnect (1) Maximum Frequency Response 6.80 kHz (3)4.50 kHz (1) Package Contents Biz 1500 Headset Controller Warranty Card Warning Card Quick Start Guide (3) Biz 1500 Headset Warranty Card Warning Card Quick Start Guide (1) Depth 8"" (203.20 mm) (2)11"" (279.40 mm) (1)7.50"" (190.50 mm) (1) Earpiece Type Binaural (2)Monaural (2) Sound Mode Mono (2)Stereo (2) Weight (Approximate) 113.4 g (2)136.1 g (1)149.7 g (1) Width 6"" (152.40 mm) (2)5.50"" (139.70 mm) (1)9"" (228.60 mm) (1)