Sennheiser HD-25 Plus, Monitor Headphones, Successor of the following Sennheiser headphones: HD 25-II, HD 25-1-II, HD 25-C-II, HD 25-13-II, HD-25 Aluminium, Dynamic, Closed-back, Supra-aural, Impedance: 70 Ohm, Max. SPL: 120 dB (1 kHz,1 Vrms), Frequency range: 16 - 22000 Hz, Total harmonic distortion at 1 kHz: <0.3%, Max. input level: 200 mW, Single sided cable, Rotatable ear cups, Split headband design, 1-3 m coiled cable, Stereo jack 3.5 mm with 6.3 mm adapter, Weight without cable: 140 g, Additional accessories: 1.5 m straight steel wire cable, a pair of soft ear pads and a carrying bag