Sennheiser HD 599 Open Back Headphone The HD-599 Open-Back Around-Ear Headphones from Sennheiser are a successor to the popular HD 500 series and are powered by Sennheiser's proprietary transducer technology including the "Ergonomic acoustic refinement" (E.A.R.) design, which channels the audio signal directly into your ears. They can be used to deliver high-end audio performance and offer exceptional wearing comfort thanks to the large earcups, broad-padded headband, and soft replaceable earpads. Product Highlights: - Exceptional Wearing Comfort - Circumoral Design - Open Back - Replaceable Earpads - 12 Hz to 38.5 KHz - Includes a 9.8' Cable with 1/4" Plug - 3.9' Cable with a 1/8" Plug - 1/4" to 1/8" Headphone Adapter If you want to treat your ears to audiophile sound quality, this is the Sennheiser HD 5 model for you. With their impressively refined natural sound, and their uncompromising build. You've reached your goal Enter the Room of Listening Pleasure With the HD 599 headphones,