iFrogz EP-PHT-WHT Earpollution Phantom Headphones with Mic - White Powerful, comfortable, and lightweight design with an In-line single button remote/mic - Cord Length: 1.1 m Deep bass tones Driver Unit: 40 mm neodymium - Impedance: 32 ohms Sensitivity: 100 dB +/- 3 dB at 1 kHz - Frequency Response: 20 Hz to 20 kHz Authentic iFrogz products and warrantees on iFrogz products