Full-size wired headphones Koss UR / 20 Description: The Koss UR20 is a full-size headphone that covers the entire ear and is comfortable to use for long periods of time. The metal headband firmly fixes the headphones on top, while the closed design allows you to achieve excellent sound insulation, allowing you to listen to music and not hear outside noise and interference. The Koss UR20 has a 2.4 meter cord and a standard 3.5mm audio jack. You can find an adapter for the 6.35mm connector in the kit. It should be noted that the Koss UR20 is equipped with neodymium magnets for high quality sound and has a low coefficient of non-linear distortion – 0.3%. Adapter: 3.5 / 6.3 Closed and tight fitting Weight: 283 g Frequency response range: 30 – 20,000 Hz; Resistance: 32 Ohms Sensitivity per 1 MW: 97 dB THD: <0.3% Cable length: 2.4 m