- Lightweight open-air headphones are comfortable to wear, even for extended periods; also allow

- Lightweight open-air headphones are comfortable to wear, even for extended periods; also allow you to hear ambient sound.
- Unique cirum-aural design provides an excellent fit for any size head; allows for fatigue-free listening.
- Oversized 40 mm diameter drive units are larger than most headphones for noticeably deeper bass, lower distortion and wider dynamic range; frequency response extends down to an amazingly low 12 Hz.
- Neodymium magnets for maximum energy and minimum size; Neodymium packs more magnetic energy per ounce than conventional Ferrite, Samarium Cobalt or Aluminum magnets; help produce ample sound output-106 dB sensitivity.
- PET diaphragms ensure high rigidity for minimum distortion; low mass for high-frequency response all the way out to 22,000 Hz.
- Sony Acoustic Turbo Circuit for high efficiency; gets high sonic output from your portable stereo; extends bass response.
- Self-adjusting headband conforms precisely to the curve of your head for a fit that stays comfortable, even after listening for hours on end.
- Angle-adjustable housing pivots the earcups for maximum comfort.
- Soft cloth earpads pamper your ears for hour-after-hour listening.
- High-grade metallic finish.
- Sony UniMatch plug with fixed mini plug for portable use and screw-on phone plug for home use.
- Gold-plated plugs to help resist corrosion for high conductivity, low noise.