Type: DJ Headphone Speaker: 53mm; Sensitivity: 105dB S. P. L at 1KHz; Frequency Response: 20Hz-20, 000Hz; Impedance: 36ohm; Rated Power: 3mW; Power Capability: 30mW; Cable Length: 4m with 0.3m tolerance; Plug Type: Stereo 3.5mm / 6.3mm add 3.5mm The ear pad of this DJ headphone utilizes high quality super soft leather from Korea. It is soft, airy, absorbing sound and noise-proof . Notes: 1) It can keep its sound quality independently in the club or Disco hall because of its good sound insulation. It services professional user with round and clear sound; 2) A 4-meter cable provides more freedom to move; 3) The headphone utilizes high grade innoxious Oxygeon-free cabling for speedy transfer with minimal loss. Coiled cable is easy for storage; 4) The bracket can be 180 degrees rotated and folded; 5) Ear pad utilizes high quality super-soft leather from Korea. It is soft, airy, absorbing sound and noise-proof. You feel comfortable even for long time use. Sponge is culled from imported green memory sponge and not flexible; 6) Noise-proof mic manufactured in dust-free workshop, high sensitive reception and high-pitched sound input&output enables virtual make real; 7) Adopt 53mm Neodymium magnet driver unit, which can have a perfect performance from undertone to alt; 8) All raw materials including working process comply with EU ROHS directives. And we can provide relative test report issued by authority, which ensure a safe and secure use.