High Fidelity Sound, Noise Isolation, In-line Microphone * Control Button, Tangle-free Cable, Included S/M/L Ear Gels, Included Carrying Pouch * Specifications: Driver Unit: 8mm, Sensitivity: 96dB/1mW, Impedance: 16 ohms * Cable Length: 3.9 feet, Frequency Range: 20Hz-20kHz, Rated Power: 2mw-10mw, Jack: Gold Plated 3.5mm * Compatible with: Apple iPad, Apple iPad 2, Apple iPhone, Apple iPhone 3G, Apple iPhone 3Gs, Apple iPhone 4, Apple iPhone 4CDMA, BlackBerry By RIM, Casio, HP, HP Palm, HTC, Huawei, Kyocera, LG, Motorola, Nokia, Pantech, Samsung, Sanyo, and Sharp