A flexible abrasion resistant omnidirectionally reflective jewelry piece has a central cylindrical braided rope core surrounded by a cylindrical reflective braided sleeve comprising three or more narrow width reflective strips that are braided at a shallow cylindrical braid angle that reflect an incoming light beam back in the same direction as it was emanated. In the buck mode, the converter receives a supply voltage via an input terminal and generates a charging current that is supplied to a battery, thereby charging the battery. The eductor body has a first pathway for directing inlet air toward the heat recuperator and a second pathway directing inlet air into the exhaust outlet.