Amazon.com has a Koss UR40 Collapsible Over-Ear Headphones with Titanium Elements for Deep Bass for $29.99with Free Shipping.
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- Wide, 15 to 22,000 Hz frequency response n
- Titanium-coated, high-polymer diaphragms deliver accurate sound n
- Neodymium iron boron rare-earth-magnet structures for accurate sound reproduction n
- Oxygen-free-copper voice coils for high signal clarity n
- Closed leatherette ear cushions for maximum isolation and deep bass