The UR29 Stereo Headphones have a Frequency Response of 18-20,000 Hz, High fidelity stereophone utilizes an anisotropic magnet and 1.4 mil mylar element for deep bass and treble clarity, Closed leatherette ear cushion for maximum isolation and deep bass, Built for maximum durability for DJ and recording use, Collapsible design for protective storage and maximum portability when listening on the go and a Straight, single entry 8 foot cord.