The Gentek NC1 Noise Canceling Headphones are a brand new pair of over-ear headphones designed for studio and live monitoring. With a 40mm driver size and a frequency range of 20HZ-20KHZ, these headphones provide clear and accurate sound reproduction. The black color and sleek design make them suitable for various settings. Featuring Bluetooth connectivity, a built-in microphone, and a 32 ohm impedance, these headphones offer a convenient and high-quality listening experience for music professionals and enthusiasts alike. The Gentek NC1 headphones are a reliable choice for those looking for top-notch sound quality and comfort.