Abstract: A portable electronic device includes an electronic amplifier and a battery power supply in a lower hollow prismatic-shaped housing which has a rectangular base wall panel and an upper oblique wall panel which is disposed obliquely downwards between a rear panel and a front panel of the housing, and an upper housing containing a loudspeaker which has a hollow prismatic shape including a lower oblique wall panel which is disposed downwardly between the rear wall panel of the housing and a front wall panel of the housing. Confronting outer faces of the oblique housing wall panels are joined by a central hollow rotatable joint which receives therethrough electrical leads that connect the loudspeaker to the amplifier. In a first, 0-degree orientation of the amplifier housing relative to the speaker housing, the composite shape of the device approximates that of a cube.