iFrogz EarPollution Plugz Earbuds - Grape (EPD33-GRAPE) Plugz deliver super-deep bass, smooth, undistorted highs, and crystal clear vocals..Connectivity Technology: Wired Plugz come with three tip sizes, to fit your ear canal Compatible with iPhone, iPod, BlackBerry, and any other media device with a 3.5 mm jack. Driver Unit: 9mm neodymium - Impedance: 32 ohms - Sensitivity: 98dB+/-3dB at 1KHz - Frequency Response: 30 Hz to 20 kHz - Cord Length: 1.2 meters