The sleek on-ear ATH-ES88 headphones offer superbly clear high-resolution sound from Audio-Technica's new 40 mm drivers. Along with cutting-edge looks and extremely comfortable earcup design, the headphones deliver supreme audio reproduction with an extended frequency response of 9 - 26,000 Hz. The high-grade aluminum housing achieves excellent low-resonance acoustic characteristics. On each end of the headband, a unique pivoting mechanism allows the earpieces to swing to the most comfortable position for a custom fit. The newly designed cable is flat for tangle-free storage.