The CM31-EZ has 3" (76.2 mm) full-range high-extrusion, high-fidelity polypropylene driver with butyl rubber surround and weatherized components for indoor/outdoor applications. It has a shallow 3.5" (88.9 mm) deep all-steel backcan with integrated driver and baffle configuration and ultra-compact design with a total visible footprint of less than 6.3" (160.6 mm) diameter. The CM31-EZ has rapid installation, blind-mount, fixed-wing mounting mechanism with constant tension design affixing to wall thicknesses ranging from 0.1" (2.5 mm) to 1.5". (38.1 mm). Corrosion-resistant, powder-coated aluminum grille with snap-fit attachment. The ceramic input terminal accepts up to 10 gauge plenum rated signal wire and includes thermal fuse. The CM31-EZ is suitable for use in voice alarm applications subject to EU regulations EN60849 and BS5839-8. UL 1480 (UEAY) and 2043 approved. Included accessories: Tile bridge.