Headphones - - earplugs, closed construction, 3,5mm Jack, active noise control (ANC), frequency range: 19 Hz-19000 Hz, impedance: 36 Ohm, removable cord length of 1m The SE535 is a headphone that gives you a wonderful surround sound experience and rich bass thanks to the dual woofer unit. For comfortable carrying, the power cord can be removed. The exceptional design of the earpiece has resulted in a reducuction of up to 37 dB of ambient noise. Sound insulation technology prevents external audio stimuli from interfering with your listening enjoyment. As each ear is different, included in the package is 3 sizes of exchangeable ear buds.Its Ergonomic and professional design with sophisticated details perfects this model. The cable will no longer interfere with you, as the outlet is directed, unlike normal headphones, up and over your ear. Low impedance guarantees higher battery life of connected audio devices.