Sendy Audio Peacock over-ear-headphone- Quad-Former technology, magnetostatic drivers, size of drivers 88 mm, gold-plated elements, open back, fequency 20 - 40000 Hz, sensitivity 103 dB, ± 3 dB, impedance 50 Ohms, 2m cable with 4,4 mm Pentaconn plug, Gewicht 578 g