iFrogz EarPollution Toxix Headphones - Pink With extra-large speaker drivers, Toxix deliver super-deep bass, smooth, undistorted highs, and crystal clear vocals Lightweight and ergonomically designed. Designed with comfortable ear cushions. Compatible with iPhone, iPod, BlackBerry, and any other media device with a 3.5 mm jack. Driver Unit: 30mm neodymium - Impedance: 32 ohms - Sensitivity: 105dB+/-3dB at 1KHz - Frequency Response: 18 Hz to 20 kHz - Cord Length: 1.2 meters Driver Unit: 30mm Impedance: 32 ohms Sensitivity: 113dB+/-3dB requency Response: 15Hz to 20 KHz Cord Length: 1.2M