Beats Studio Over-Ear Wired Headphones- Black (Refurbished) Renewed products look and work like new. These pre-owned products have been inspected and tested by Amazon-qualified suppliers, which typically perform a full diagnostic test, replacement of any defective parts, and a thorough cleaning process. Packaging and accessories may be generic. All products on Amazon Renewed come with a minimum 90-day supplier-backed warranty. Active noise-cancelling for planes, trains, buses, and other noisy settings. Item requires batteries. Collapsable design with detachable cord for compact storage. Over-ear cushioning provides superior comfort for hours of listening.