The inventions refers to a holding device (1) for a mobile telephone, the holding device (1) having a mounting device (2) for accommodating the mobile telephone, the mounting device (2) comprising a contact surface (4) and at least two holding components (6) which protrude from the contact surface (4), the holding device (1) being characterized by the fact that at least one of the holding components (6) has an adjusting device for adjusting a length L, at which the holding component (6) protrudes from the contact surface (4) and wherein the receiving device (2) can be put in a hold position and a release position, wherein the receiving device (2) is arranged to interact positively with a mobile telephone mounted in the holding device (1) when the receiving device (2) is in the hold position.