Utilizes standard cat 3 5 or 6 cableExcellent voice and music reproductionBuilt-in accessible volume control per inputWide sound dispersionElectrically acoustically matched componentsSturdy steel grille- Ceiling flush mount dual input 8" speaker assembly complete with speaker amplifier 2 separate built-in volume controls and round grille. - Dimensions 13.0 "Dia x 3.0 "D (33.02 cm x 7.62 cm)- Weight: 2.3�lbs�(�1.04�kg)�- Shipping Weight: 3.7�lbs�(1.67�kg)