B-Stock, Sennheiser HD 550; Over-Ear; open back; dynamic; frequency range: 6 Hz - 39.5 kHz; impedance 150 Ohms; 106.7 dB SPL (1 kHz, 1V); THD(1kHz)<0,2%; ear pads made of Velour; Headband made of synthetic leather; detachable, one sided, straight...
