The JVC HA-RX500 is a superior quality headphone with Ear Direct Structure that produces rich, whole bodied audio. You get a comfortable listening experience even after a long time use with the Twist Action Structure of these JVC stereo headphones. With 40mm neodymium driver units, these JVC headphones deliver exceptional bass with great clarity. The JVC HA-RX500 headphones have 105 dB of sensitivity to provide loud, theater-like sound. Get clean and balanced audio across all levels with the 10 - 22,000 Hz frequency response of these JVC stereo headphones. The 70 ohm impedance of these JVC headphones offers clearer audio with maximum sound output. The JVC HA-RX500 headphones have a cushioned head band that provides amazing comfort and perfect fit.