Beats Studio Over-Ear Headphones - White (Refurbished) This Certified Refurbished product is factory refurbished, shows limited or no wear, and includes headphones and 3.5mm cable plus a 90 day warranty Specifically engineered to bring out the best elements of today&#39;s rap and rock music Over-ear cushioning provides superior comfort for hours of listening Collapsable design with detachable cord for compact storage Active noise-cancelling for planes, trains, buses, and other noisy settings. Please ensure that you have put in batteries and the 3.5mm cable is plugged in correctly.