The AT-C2121 is a 165mm (6.5") high power coaxial speaker fitted with a 15W transformer. These stylish, high performance, architecturally unobtrusive speaker/grill combinations can be painted to match decor. Super easy to install with a 'Flip-Lock' mounting system. Typical applications include medical centres, shopping malls, restaurants, boutiques, hotel foyers, apartments, offices etc.