iFrogz EP-WBPM-NAT Timbre Pro EarBuds-Walnut (Discontinued by Manufacturer) Timbre EarBuds deliver quality sound, super-deep bass, smooth, undistorted highs, and crystal clear vocals. Timbre EarBuds come with three tip sizes, to fit your ear canal. Fashioned with a wooden speaker chamber, Timbre EarBuds resonate with fabulous sound. Includes convenient in-line microphone to allow enjoyment of in-depth acoustic tuning, without missing calls from your mobile phone. Compatible with iPhone, iPod, BlackBerry, and any other media device with a 3.5 mm jack. Driver Unit: 7mm neodymium - Impedance: 32 ohms - Sensitivity: 98dB+/-3dB at 1KHz - Frequency Response: 20 Hz to 20 kHz - Cord Length: 1.1 meters