The TOA PC-580SBTQV is an 8" square ceiling speaker ideal for intercom systems, compatible with RS series station boards including RS-142 and RS-442. It features a convenient push-button to call the master station effortlessly. Its distinctive "monocoque" construction enhances durability and structural strength. Additionally, the speaker includes a baffle with a pre-drilled hole to accommodate a separately supplied microphone. Perfect for seamless communication in your space, this speaker combines functionality with robust design. Upgrade your intercom setup today with TOA's reliable solution!