With 50mm Neodymium driver unit, the JVC HA-RX900 headphones ensure high quality sound reproduction. The 2-pieces of acoustic lenses in these JVC wired headphones helps tune both direct and indirect sound for natural sound production. The frequency response of 7-26,000Hz in these JVC headphones captures wide range of signals for superior performance. The JVC HA-RX900 is capable of delivering louder bass due to the sensitivity of 106dB/1mW. The 3.5m pure copper cord with these JVC wired headphones reduces the total amount of transmission loss for better sound quality. The large head pad and spongy ear pads in these JVC headphones provide comfortable listening ideal for traveling.