Direct Sound Sna-2 Serenity II Headphones Drivers:40 mm, dynamic speakers Plug: 90 degree stereo 1/8-Inch (3.5 mm) gold-plated with offset to allow use when protective phone cover is installed Cord: 40-Inch (1,016 mm) premium twin-lead cables Passive Noise Attenuation: Up to 33.4 dB In the box: Serenity II noise attenuation stereo headphone, Convenient storage pouch, Airline jack adaptor, Dual stereo splitter