the t.bone HD 990D, Headphones, Ideal for drummer, Sound attenuation of ambient noise about 22 dBA, Circumaural, Dynamic, Impedance: 35 ohms, SPL: 105dB, Frequency response: 10 - 20,000 Hz, 1-4 m Spiral cable, Connector with 3.5mm stereo angled jack, Weight with cable: 358 g, Weight without cable: 258 g, Included: 6.3 mm adapter