There is provided an electronic device for receiving an input data signal and an input clock signal that indicates a timing to obtain the input data signal. The folding action allows the table top, legs and benches to be folded to assume a generally vertical position, the table top being made of two halves and hinged about a central axis, a pair of legs attached to each table top half and being pivotally attached to their respective table top half, and bench supports extending between each pair of legs being pivotally attached to the legs. The positioning information can include three dimension position information in a building that can then be used to deliver services and information to a mobile device. This separation member is provided at an upper side or a lower side of the subunit, and extends from one side to the other side of the subunit.