Noise cancelling ear cushions you wont need to make the sound louder to drown external sounds deep and clear full spectrum sound at any level of sound no need to expose your ears to unnecessarily high sound pressure levels in order to enhance sound lightweight lies light on top of the head and does not sqeeze the sides an adjustable cushioned rim fits any head swivel earpieces and a flexible rim fold up neatly to carry in your bag when you travel thick cord will not tangle optimum