The ES-4T produces excellent intelligibility for speech and full-frequency response for music making it ideal for retail, commercial, industrial, institutional, and residential applications. This self-contained in-ceiling or in-wall speaker system with 4" dual cone full range driver has a high-frequency whizzer cone to provide the kind of crisp, high-frequency response that would typically only be produced by a coaxial speaker. The ported enclosure is tuned for extended low-frequency response, while the speaker's wide dispersion can actually reduce the number of speakers required to produce even coverage in distributed speaker systems.