Like all RHA headphones, these are beautifully designed. These inear headphones are made using Ceramic Transducers. Designed to be used with an external amp these reference quality headphones come with removable cords, balance and unbalanced cables, a quarter inch adapter, storage case and a large assortment of gels so you can get a proper fit. There is also a stainless rack to hold the extra gels. As an authorized RHA dealer, I purchased this pair along with a DACAMP L1 when they came out. I tested these but never got a chance to use them, so they are not even broken in yet. All the accessories are included. The only things missing are the paper sleeve that went over the balanced cables and the outer sleeve that went over the box.