Sendy Audio Apollo, Over Ear Headphones, Quad-former technology, Magnetostatic drivers, Driver size 68 mm, Open, Frequency range: 20 - 40000 Hz, Sensitivity: 95 dB ± 3 dB, Impedance: 16 Ohm, 2 m cable with 4.4 mm Pentaconn plug, Weight: 395 g, Includes...