Design: Usually, a white ABS plastic enclosure with a metal rustproof grille, suitable for drop ceilings.
Power Taps: Many models (e.g., CS620) have multiple power settings (e.g., 6W, 10W, 30W) to adjust volume.
Safety Standards: Options include fire-rated enclosures for safety compliance.
Installation: Quick spring-clip mounting is standard, though surface-mounted options are available for solid ceilings.
Performance: Options range from simple dual-cone speakers for voice paging to high-quality coaxial models for music.