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. It also improves isolation, plugging out ambient sounds, and enhances deep bass and treble clarity. These high quality earphones have an exceptional frequency response – from 10Hz to 20kHz.
Read More: Proel’s Kossplug In-Ear Headphones