Koss Full-size over-the-ear headphones (model number 192980 Ur20) have a 3.5mm connection type to connect with your device. The headphones have a noise-canceling feature that cancels all the unwanted noise from the background. The headphones have balanced sound and are designed lightweight, provides comfort fit and gives the best sound experience. The ear cushions provide great comfort to the ears. Also, the long cord is given for convenience to users. These headphones give sounds of a different frequency for crispness and richness.