3.5-inch ceiling speaker featuring elegant and innovative design that can be flush-mounted in false ceilings or panels. The speakers are equipped with a line transformer that enables direct connection to constant voltage systems at 70V or 100V. The multiple sockets on the transformer make it possible to select the output power from among several values. Installation is quick and easy thanks to a special three-hook system that avoids the need for using screws and pallet or other attachment elements.