Beats by Dr. Dre Studio 900-00069-01 are over-the-ear headband headphones that deliver a clear listening experience. The frequency range covered by this model is 20 Hz to 20 kHz. This pair of blue headphones has a noise cancelling feature. Thanks to their plush ear cups, these headphones are comfortable to use for long hours. The headphones have a 40 mm driver size. In addition, this wired model comes with a 3.5 mm audio cable.