Large 40mm driver unit. Tightly sealed acoustic design for high lever of sound isolation and booming bass sound.Power handling capacity : 1,000mWUltra thick pressure. relieving earpads cushion your ears for unbeatable, supreme comfort.Durable and lightweight flat cord (1.8m)Frequency respond : 15. 20,000Hz. Sensitivity: 108 dB/mW.Impedance: 32. Plug: Gold Plated L - Shaped stereo mini plug.Pack includes, 1x headphones, 1/8 Inch adaptor and free muffin player Welcome to the SeDJ series Lifestyle DJ Headphones- the Extra Bass Headphones for all purpose. The SeDJ headphones are circus-aural closed design all purpose headphones. Its 40mm fine tuned driver units deliver crystal clear sound with extra deep bass. It features ultra thick, pressure relieving ear cushions for supreme comfort and better acoustic performance. The over ear cups are very lightweight and they are angled parallel to your ears to not only reduce pressure, but also increase comfort and deliver an unbelievable listing experience. The extra large ear cushions allow for a high level of sound isolation. They are made with breathable materials that keep you extremely comfortable during extended use.