The MDR-ZX110A Stereo Headphones come with enclosed design and can be wrapped easily around ears, leading to a distraction-free sound. Also, acoustics will be reflected back to your ears and you will be enabled to hear a detailed audio. Enfolded back design also helps in maximizing the bass balance in music, so that you are able to hear every beat clearly. The frequency range of the MDR-ZX110A Stereo Headphones is 12Hz to 22kHz, delivering a deep bass and elevated sound quality.