Lightweight Design Extra large 40mm drivers provide deep bass and superior sound Comfort soft on-ear cushions for long wear Fold up design is great for travel Compatible with any MP3 player, DVD player, CD player or portable device The Maxell Amplified headphones focus on dynamic sound quality and power. The extra large 40mm drivers provide deep bass and superior sound. The padding around these on-ear headphones is so comfortable on your ears, you'll be able to keep them on for hours. The style is great ears of all sizes. The Maxell Amplified headphones are lightweight and ready to travel with a foldable design. The headphones are compatible with any MP3 player, DVD player, CD player or portable device.