Check the listing for details. Audeze MM-500 Open-Back Studio Headphones. Color: Black, Condition: New. Listed at 329.99 USD. The Audeze MM-500 Open-Back Studio Headphones are high-quality headphones designed for studio monitoring, DJ, and live monitoring. With a frequency range of 5Hz - 50kHz and impedance of 18 Ohms, these headphones provide a wide and accurate sound reproduction. The open-back design and Bluetooth connectivity make them suitable for a variety of uses, while the sleek black color and stylish design make them a popular choice among professionals and audiophiles. Backed by a 1-year manufacturer warranty, the Audeze MM-500 headphones are a reliable and versatile option for those seeking superior sound quality.The Audeze MM-500 Open-Back Studio Headphones are high-quality headphones designed for studio monitoring, DJ, and live monitoring. With a frequency range of 5Hz - 50kHz and impedance of 18 Ohms, these headphones provide a wide and accurate sound reproduction. The open-back design and Bluetooth connectivity make them suitable for a variety of uses, while the sleek black color and stylish design make them a popular choice among professionals and audiophiles. Backed by a 1-year manufacturer warranty, the Audeze MM-500 headphones are a reliable and versatile option for those seeking superior sound quality.