Beats Studio Wired Over-Ear Headphones NOT WIRELESS - Purple (Refurbished) This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com Active noise-cancelling for planes, trains, buses, and other noisy settings. Collapsible design with detachable cord for compact storage. Battery-powered over-ear headphones developed by Dr. Dre. Over-ear cushioning provides superior comfort for hours of listening. Specifically engineered to bring out the best elements of today's rap and rock music. Item requires batteries. Headphones amplify music while blocking out noise.