The SONOS ACE Noise Cancelling Headphones in Black are brand new and sealed, offering a premium listening experience with their 40mm drivers and noise cancellation feature. Designed for studio monitoring, DJ, and live monitoring, these Bluetooth wireless headphones from Sonos provide a frequency range of 20 Hz – 20 kHz and come with a one-year manufacturer warranty. The sleek headband design and ear-cup form factor, along with built-in microphone and 16 ohm impedance, make these headphones a top choice for those seeking high-quality audio performance in a stylish and convenient package.