Koss UR40 Lightweight Stereo Headphones for MP3 and Smartphone Silver Over-Ear iPod, iPhone, - [item]

Frequency response - 10 to 20,000 Hz, Impedance - 60 ohms. Wide bandwidth frequency response of 15 to 22,000 Hz. Titanium coating and polymer diaphragm provide accurate sound. The neodymium-iron-boron rare-earth magnet structure ensures accurate sound reproduction. Overseas products have their own specific requirements and are sold from overseas. They may differ from local products in terms of fit, age rating, product language, labeling, instructions, etc. The oxygen-free copper voice coil provides high signal clarity. Closed leatherette ear cushions provide maximum isolation and deep bass.