We've listened to feedback from DJs and improved on our previous professional DJ headphones. With newly developed drivers, the HDJ-X7 model gives you clean monitoring even at high volumes. The independent ground wire in the 4-core twisted-structure cable ensures superior left and right channel separation, while the flexible headband means your headphones will be a perfect fit. The HDJ-X model headphones are designed to be flexible. Their swivel mechanism allows you to wear them comfortably, whichever way you prefer, for long periods of time. No need to worry about bumps and knocks during transport as these DJ headphones can handle severe conditions and heavy use. They even cleared the US Military Standard Shock test.