To improve on visibility of graduation while securing operability of a knob part, without enlarging a necessary installation space of a slide operating device in a width direction against a panel face.

Graduations 13 for grasping a position in a slide movement direction are put on a panel face 11 of an electronic equipment 10. The electronic equipment 10 includes a plurality of slide operating devices 20, whose knob parts 30 make a to-and-fro slide movement in a fixed direction on the panel face 11 in operation. A mounting pad 31 of the knob part 30 is narrower in width than a plate part 35, set back at both right and left sides, and, out of sites of the knob part 30 in a slide movement direction, there exists a bottom-side narrow-width site with a width of a finger-touch face 34 narrower than that of the opposed face 32.