Over-ear headphones (also called around the ear) feature ear cups, or cushions, that surround your entire ear.
The cushions are often made of foam or memory foam, and come covered in a variety of materials, including leather or suede.
One variety of over-ear headphones is noise-canceling headphones, which can feature two types of technology: passive and active. Passive noise canceling refers to the sound that is eliminated by the ear cups themselves.