The Tannoy CMS 503ICT BM is a wide-bandwidth, full-range ceiling loudspeaker with an integrated zinc-plated steel back-can, designed for blind-mount installation. It features a proprietary 5-inch ICT (Inductive Coupling Technology) point-source driver that offers extended frequency range and consistent broadband directivity. The ICT driver uses wireless electromagnetic coupling for its tweeter, which eliminates the need for a crossover and enhances reliability in applications with heavy usage. Designed with Tannoy's CMS 3.0 technology, this loudspeaker provides excellent performance and intelligibility for various background music and paging systems.