iFrogz EarPollution DJ-Style Headphones - Silverspider Made with 50 mm speaker drivers, DJ's deliver super-deep bass, smooth, undistorted highs, and clear vocals. DJ's have a comfort band and thick cushions to give you maximum comfort, while spring-loaded hinges fit any head. DJ's fold up for convenient travel use. Compatible with iPhone, iPod, BlackBerry, and any other media device with a 3.5 mm jack. Driver Unit: 50mm neodymium - Impedance: 32 ohms - Sensitivity: 105dB+/-3dB at 1KHz - Frequency Response: 20 Hz to 20 kHz - Cord Length: 1.5 meters DJ-style headphones for anyone who demands great sound & unparalleled style Unique ear cushion pattern Driver unit: 50mm Imp: 32 ohm