Sony MDR-ZX100 Stereo Wired Headphones Over-the-ear Lightweight Collapsible with Neodymium Magnets & 30mm Drivers, 3.5mm Plug, 1.2m cord, and Adjustable Headband (Black) ZX Series (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. 30mm drivers and multi-layer dome diaphragm creates powerful sound. High quality large driver units accurately reproduce a broad, dynamic frequency range. Includes Headphones & Operating Instructions. Comes in Brown Box Packaging. High energy drivers deliver powerful bass & clear treble. Efficient Neodymium drivers reproduce clear mid-range and low-end sound. Pressure relieving urethane-cushioned earpads. Enjoy your extended music sessions in comfort. 1.2m cord - A rugged Y-type design makes for a tangle-free experience.