The GR8 is a great presentation of Grado. This portable in-ear headphone is designed on the basis of its long years of experience in building superior around-ear headphones. These headphones include an exclusive wide-bandwidth flexible armature driver that produces deep, clear sound with a wide frequency response. It is perfect to be used with portable media players. Well-Designed The headphones feature 3 sizes of eartips, which are formed with a fusion of two silicon rubber matter. Choosing the perfect eartip size supports in getting the best fit for enhancing comfort and noise isolation. It also aids in improving bass response. To get outstanding conductivity, the cable is made up of oxygen-free copper. It helps in getting a clear signal, without any distortion. It has a 3.5mm gold-plated stereo mini plug that offers wide compatibility to different audio devices such as CD players, MP3 players, computers, etc. Easy-to-Use Each earpiece is beautifully marked & describes the left and right channels to avoid confusion. The left channel comes with a small raised dot, letting you to state the earpieces apart.