Immerse yourself in full, smooth bass with BackBeat Plus Mobile noise-isolating earphones with microphone. The dynamic range of its neodymium micro-speakers has been extended on the low end to reproduce rich, deep bass. With enhanced bass frequency response you’ll enjoy full-bodied sound without distortion and you don’t need to crank up the volume on your audio player to achieve that live performance feel. The lightweight inEar style features SnugFit™ design with flexible material that conforms to your ear and seals out external ambient noises. Personalize the fit for proper noise isolation and long wearing comfort with the included six-piece fit kit.