The hang-up cup assembly (100) for a radiotelephone has a cradle (200) secured to a pedestal (300) using a ball (320) and a socket (220) of a ball-and-socket joint (120), a screw (400), and a dome nut (600). The ball-and-socket joint (120) is compressed by the screw (400) and the dome nut (600) to retain the hang-up cup assembly (100) in the desired position. The hang-up cup assembly (100) has a low profile, is easy to install, and can be adjusted by an end user by slightly loosing the easily-accessible screw (400), repositioning the cradle (200) relative to the pedestal (300), and tightening the screw (400) to compress the ball-and-socket joint (120) and maintain the desired new position.