The Pioneer HC-EP0501 is a pair of nano-coated ear pads designed especially for the HDJ-X10 headphones and are constructed out of nano-coated polyurethane leather that works to repel dirt, grime, and liquids as well as being easy-clean the pads are also resistant to deterioration. The replacement ear pads allow you to replace worn out earpads without needing to buy a whole new pair of headphones. The snug fit pads provide you with maximum comfort and work to deliver enhanced sound isolation that makes them perfect for recording, performing and casual listening.