Sony MDR-ZX110AP Extra Bass Wired Headphones with Mic, Smartphone Headset for iPhone & Android with In-Line Remote & Microphone, Neodymium Magnets & 30mm Drivers, Black (Certified Refurbished) This Certified Refurbished product has been tested and certified to work like new, with minimal signs of wear, by a specialized third-party seller approved by Amazon. The product is backed by a minimum 90-day warranty and may arrive in a generic brown or white box. Accessories may be generic and not directly from the manufacturer. Includes Headphones & Operating Instructions. Comes in Brown Box Packaging. Neodymium dynamic drivers deliver precise sound. Wide frequency range for clear highs and lows. Cushioned earpads for total comfort. Swivel folding design makes travel easy Inline remote and mic for hands-free calls. Enfolding closed-back design seals in sound