Koss PLUG Earbuds & In Ear Headphones

• ?A first of its kind, these are stereo, noise isolating in-ear headphones that deliver the kind of accurate acoustical reproduction and isolation typically found in high-end, closed-style high fidelity headphones.
• A dynamic element positioned just outside the ear connects to a tubular port structure that inserts into a soft, expandable cushion.
• The soft, foam cushion expands for a custom comfort fit with every listening experience. It also improves isolation, plugging out ambient sounds, and enhances deep bass and treble clarity.
• Combine the Koss Plug with your favorite music and it instantly becomes the ultimate accessory for on the go listening.

Feature

• Noise-isolating in-ear headphones
• ??? Memory foam ear cushions
• ??? In-ear headphones expand for custom comfort, improving isolation and high fidelity, and enhancing deep bass and treble clarity
• ??? Additional soft foam ear cushions included
• ??? Covered under the Koss Stereophones Limited Lifetime Warranty