Comfortable, lightweight headphones are ideal for home use or travel. Proprietary cancellation technology and a closed-back, over-the-ear, recording studio style design results in the elimination of 95% of all background noise, so you can enjoy your audio selections uninterrupted. Enhanced high-fidelity audio amplification provides detailed natural reproduction of music and speech. Headphones are adjustable and compatible with any portable audio device. A single set of batteries provides more than 50 hours of continuous use.