GeneralBrand: Cyber Acoustics Model: AC-400MV HeadphoneHeadphone Frequency Response: 20Hz-20KHz Connector: 3.5mm Ear Coupling: Supra-aural Cord Length: 7 ft. MicrophoneMicrophone Frequency Response: 100Hz-16KHz Microphone Sensitivity: -67dBV/Microbar -47dBV/Pascal FeatureFeatures: Voice recognition certified In-line volume and mute control DNCT4: Direct Noise Canceling Microphone Technology 180 degree microphone Leatherette ear pads Adjustable boom arm Ambidextrous design (wear on right or left side) Manufacturer WarrantyParts: 1 year limited Labor: 1 year limited