Neumann NDH 20 Closed-Back Studio HeadphonesThe Neumann NDH20 is a closed back headphone combining excellent isolation with carefully balanced sound image and outstanding resolution. It's ideal for monitoring and mixing tasks, even in loud and noisy environments. The NDH20 uses newly designed drivers (38 mm 1. 5) with high Gauss neodymium magnets to ensure high sensitivity and minimized distortion, thus allowing the user to listen to the pure audio signal without unwanted coloration. Two