A device can include a base that includes an upper surface and an opposing lower surface and a slot that includes an upper surface opening in the upper surface, a lower surface opening in the lower surface, a slot width that is greater than approximately 5 mm and less than approximately 25 mm and a slot length that is greater than approximately 50 mm and less than approximately 300 mm; an arm operatively coupled to the base; and a display housing operatively coupled to the arm, where the display housing includes display circuitry and a display surface.