Audio-Technica ATH-M70x Closed-Back Dynamic Professional Studio Monitor Headphones Tuned for extremely accurate reproduction and carefully crafted using key metal components for lasting durability Proprietary 45 mm large-aperture drivers are tuned to accurately reproduce extreme low and high frequencies (5 to 40,000 Hz) while maintaining perfect balance Ideal for studio mixing and tracking, FOH, DJing, mastering, post-production, audio forensics and personal listening Circumaural design contours around the ears for excellent sound isolation in loud environments Equipped with 90 swiveling earcups for easy, one-ear monitoring