With reference to the Drawing Figures, and initially to FIG. 1, a security system wireless control box unit 10 is shown with a twelve-button key pad 12 at its upper side, a shell 14 of a rigid material formed in a round shape with a slightly wider base than at the top surface, and an array of perforations 16, for purposes of ventilation and sound transmission/reception, at the lower part of the round sidewall. Here the control box unit 10 is a Google Hub Guard, and has a cylindrical to somewhat frustoconic shape, with a slightly bulged-out bottom side. This is a convenient example, but our invention can be applied to control boxes of a wide variety of geometries. A cord 22 is obscured in this view but extends from the back of the control box unit 10. To the right of the generally cylindrical or frustoconic control box unit 10 are accessory security devices, e.g., motion detectors 18, door and window sensors 19, and key fobs 20 for authorized persons. These may connect via Wi-Fi or Bluetooth, or other wireless means with other equipment including the unit 10.