The Bose QuietComfort SC Black Over-Ear Bluetooth Noise-Cancelling Headphones are designed for studio monitoring, DJ, and live monitoring purposes. With a driver size of 40mm and a frequency range of 2.5 Ghz band, these headphones provide high-quality sound for professionals in the music industry. The sleek black color and comfortable headband form factor make them a stylish and practical choice for long hours of wear. With built-in Bluetooth wireless technology and noise cancellation features, these headphones offer a convenient and immersive listening experience for users on-the-go. Additionally, the manufacturer warranty of 1 year ensures reliability and peace of mind for customers.