The Sennheiser HD 206 stereo lightweight headphones fit comfortably over the ear providing dynamic audio with crisp bass and good external noise attenuation• Powerful sound reproduction. • Rich, crisp bass response. • Lightweight and comfortable to wear. • Good attenuation of ambient noise. • Rugged. • High-quality leatherette ear pads. • Gold-plated ¼ Inch (6.3 mm) jack adapter. • 2-year guarantee,• Frequency response (Headphones) 21 - 18000 Hz . • Sound pressure Level 108 dBHeadphone Style = Over EarFrequency Response = 21 - 18000 HzColour = SilverImpedance = 24OhmsSound Pressure Level = 108dBCable Length = 3mConnector Adapter Included = YesWeight = 165 (without Cable) g, 215 (with Cable) gMaximum Frequency Response = 18000 HzMinimum Frequency Response = 21 Hz