Ultimate Ears MetroFi 100 Noise-Isolating Earphones

The Metro.fi 100 offers superior sound quality with extended bass and noise isolation. The form factor is small and lightweight providing excellent comfort and fit. It has a low friction fabric cord that eliminates cables tangles. Through it's confortable in-ear design, the Metro.fi 100 provides noise isolation that reduces ambient interference and enhances quality of sound. Accessories include three gel ear tip sizes: small, medium and large, as well as a pocket ready hard carrying case. Product specifications are 10mm Mylar speaker, 103 dB SPL/mW at 1kHz input sensitivity, 17 Ohms nominal impedance, 46 inch cable length, 1/8 inch (3.5mm) stereo plug, 20 Hz-15 kHz frequency response, and 16 dB of noise isolation