The Koss KSC55 Headphones are designed for precise sound reproduction using a titanium coated high polymer diaphragm combined with a dynamic element, covering a frequency response from 15 to 20,000 Hz. The headphones feature oxygen free copper voice coils to maintain clear signal quality. Their behind-the-head design supports comfortable use over extended periods, suitable for professional audio monitoring and general listening applications. A 4ft straight, single entry cord offers reliable connectivity without excessive length.