The Beyerdynamic DT 320 Mk II is a closed-back stereo headphone. It is designed for professional use and offers excellent sound reproduction with a frequency response of 10 Hz to 30 kHz. The headphones have a lightweight construction and are comfortable to wear for long periods of time. They feature a single-sided, coiled cable and a standard 3.5 mm stereo mini-jack plug. The DT 320 Mk II is known for its durability and reliable performance.