Large 40mm driver unit. Tightly sealed acoustic design for high lever of sound isolation and booming bass sound</br>Power handling capacity : 1??000mWUltra thick pressure. relieving earpads cushion your ears for unbeatable?? supreme comfort</br>Durable and lightweight flat cord (1.8m)Frequency respond : 15. 20??000Hz. Sensitivity: 108 dB/mW</br>Impedance: 32. Plug: Gold Plated L - Shaped stereo mini plug