Open studio reference class headphones for mixing and mastering, Made in Germany 250 ohms, 45 mm dynamic Tesla neodymium drivers Single sided, detachable cable with mini-XLR connectors Soft, replaceable ear pads and headband for long studio sessions. Headphone frequency response : 5-40,000 Hz. Nominal sound pressure level : 102 dBSPL (1mW/500Hz)
https://www.amazon.com/beyerdynamic-1990-Pro-Black-Dt1990/dp/B01KM9EJ7I

