Abstract: A system for creating shelving, pedestal supports, a cabinet or desk and for mounting these items against a substantially vertical wall. One or more rails are provided which are affixed to the substantially vertical wall. Each rail is characterized as having an elongated longitudinal axis, base portion configured to contact the substantially vertical wall and a pair of flanges extending perpendicularly from the base portion in establishing a channel therebetween along the longitudinal axis noting further that the flanges are provided with a plurality of openings configured therein. The shelf, pedestal, cabinet or desk each have at least one rear surface supporting at least one bracket. A first portion of each bracket is embedded within the shelf and a second portion of each bracket extends from the shelf and is insertable within the channels and is slideable therein. In addition, the second portion of each bracket is provided with openings which align with openings in the flanges.

Abstract: A stretchable tube equipped microphone comprises a base, a supporting shall, and an acoustic head, in which the supporting shaft is pivotally jointed to the base at one end and connected to the acoustic head at the other; a switch is disposed on the base; the supporting shaft is a stretchable two-piece tube composed of an upper and a lower tube, in which the upper tube is an unbendable but stretchable hard copper tube; the diameter of the upper tube is slightly smaller than that of the lower tube; the upper tube is composed of a plurality of stretching segments and one segment thereof is buried in the lower tube; the upper tube and the lower tube are connected with the acoustic head and the base, respectively. The height and angle of the acoustic head can be adjusted according to a user's stature when using the microphone.