The Burton Dj Headphones.Key Features of the Burton Dj Headphones: Fully foldable design Driver unite: 57mm dia. Dome Impedance: 64 Ohms Sensitivity: 107db /-3db Frequency Response: 5Hz to 30Khz Maximum Power: 3500Mw Plug: 3.5mm stereo plug Cord length: 4m /-50mm | 