NCAA Virginia Cavaliers SportBuds Headphones 2 pairs included in each pack: molded in home colors and away colors with NCAA team logo Wind-up spool carrying case included prevents cord tangling 4-foot long straight cord, dual entry with L plug Use with iPod/MP3 players, CD, DVD players Frequency response: 80-20,000 Hz Impedance: 32 Ohms, Sensitivity: 82 dB SPL/1mW, Distortion: &lt;1