High Fidelity 8 in. Ceiling Speaker is designed for applications requiring extended frequency response for premium background music and voice.- High-Fidelity Extended Frequency Response.- Built In Amplifier.- Utilizes Standard Telcom/Datacom Wiring CAT 3/5/6.- Custom Colors Available.- Built In Volume Control With Detachable Knob.- Hi-Fidelity Music, Tone And Voice Reproduction.- Attractive White Metal Grille.