iFrogz EarPollution Plugz Earbuds with Mic - Black (Discontinued by Manufacturer) Plugz deliver super-deep bass, smooth, undistorted highs, and crystal clear vocals. 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. Includes convenient in-line microphone to allow enjoyment of in-depth acoustic tuning, without missing calls from your mobile phone. Driver Unit: 9mm neodymium - Impedance: 32 ohms - Sensitivity: 98dB+/-3dB at 1KHz - Frequency Response: 30 Hz to 20 kHz - Cord Length: 1.2 meters Connectivity Technology: Wired Driver unit: 9mm Impedance: 32 ohms Sensitivity: 98 dB +/- 3 dB at 1 Khz Cord Length: 1.25 m Plug: 3.5 mm