Exterior Dimensions: 6'' x 2.75'' x 1''
Linear Inches: 9.75''
Weight: 1 oz
Material: Foam
: Limited Lifetime
SKU: PLUG
Catalog #: CT39-317293

Unique earbud design directs sound into ear canal
Dynamic element for extended frequency response
Specialty ear cushion material forms to fit in the ear canal
Frequency response: 10Hz-20kHz
Includes replacement ear cushions

The Koss Plug revolutionized the world of 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.