Harman Kardon 730 Noise Isolating Earphones -Black Inline bass boost and volume control. Highly accurate music reproduction with greater sound output and enhanced bass. Enjoy accurate audio at lower listening levels. Noise isolation occurs naturally with earphones desgined to seal comfortably into ear canal. Earphones deliver full-spectrum audio response from Ipod, other MP3 and CD players, portable DVD players or any multimedia device with a stereo mini jack connection.