Abstract: For example, a headphone includes a headband, a first housing with a first cushion and a first size selector, and a second housing with a second cushion and a second size selector. A linkage connects the first size selector to the second size selector. If the linkage is engaged, moving the first size selector in a first direction causes the first cushion and the second cushion to simultaneously increase from a first size to a second size. Moving the first size selector in a second direction causes the first cushion and the second cushion to simultaneously decrease from the second size to the first size. In the first size, the first and second cushion have supra-aural properties. In the second size, the first and the second cushion have circum-aural properties. If the linkage is disengaged, a size of the first cushion and the second cushion may be independently adjusted.