The EVID 3.2 produces sound that defies its small size. It is loaded with dual, 3.5-inch, low-frequency drivers and a .75-inch, Ti-direct radiator. Its unobtrusive profile is ideal for background music and paging support in a variety of environments such as offices, retail stores, and restaurants. Coupled with the EVID 12.1 subwoofer, two to four EVID 3.2 speakers can deliver amazing SPL levels to foreground music. Line-array enhanced coverage control; Organic, unobtrusive shape; Strong-Arm-MountTM for easy, flexible aiming; Full-bandwidth overload protection; Weather resistant - Conforms to Mil Spec 810 and IEC 529 IP 34; Dual LF transducers for extended bass and greater power handling and output; Ti direct-radiator HF transducer, Neodymium structure; High sensitivity; Magnetically shielded; Zinc-plated grilles; Transformer Versions.