A headphone (1) comprising a first earphone (2) and a headband (3) to be arranged around the head of a user The headband (3) comprises a first headband part (4) and a second headband part (5), which are slidably connected to each other, so that the length of the headband (3) can be adjusted in a longitudinal direction (Y). There is provided a controlled friction mechanism, that controls the friction between the first headband part (4) and the second headband part (5). The friction mechanism comprises a first cantilever (8) comprised by the second headband part (5) and a first friction element (11) of elastomeric abutment material, which is attached to the first cantilever (8) and which due to elastic deformation of the first cantilever (8) abuts and exerts a force against a first contact area of the first headband part (4).