Capture every note and listen loudly without worry of disturbing others nearby with the Koss TD85 full size noise isolating headphones. These full size headphones so efficiently isolate the listener and prevent sound leakage, they're ideal for public listening. Built to deliver ultimate durability, listeners will love the surprising lightweight comfort of the TD85 Koss headphones. Steel yokes reinforce the overall construction, while an extra-wide steel headband provides increased strength. The simple, streamlined construction minimizes breakage.But "sturdy" wouldn't mean a thing without sound intensity to back it up. The TD85s feature dynamic elements for a rich frequency response, from 20-17,000 Hz. And you can count on a cleaner, clearer sound due to oxygen-free copper voice coils that also improve signal transmission and conduction. To top things off, the full size TD85 headphones do as much in terms of noise reduction as they do to prevent sound leakage, keeping you (and everyone around you) fully engaged in the matter at hand.