The present disclosure generally concerns multi-function control of one or several audio playback devices, such as one or several speakers of a home music system. In one example embodiment described herein, a user interface arrangement for controlling multiple functions of one or several audio playback devices comprises first and second rotatable knobs (110A; HOB). The first rotatable knob (100A) has a first rotational axis extending in a first axial direction, wherein the first rotatable knob (100A) is rotatable around said first rotational axis to control a first function and wherein the first rotatable knob (100A) is further configured to be displaced axially in said first axial direction of the first rotational axis to control a second function. Furthermore, the second rotatable knob (HOB) has a second rotational axis extending in a second axial direction, wherein the second rotatable knob (HOB) is rotatable around said second rotational axis to control a third function and wherein the second rotatable knob (HOB) is further configured to be displaced axially in said second axial direction of the second rotational axis to control a fourth function.