Features: Small caliber indoor ceiling speaker, using 3 inch full frequency high-quality speaker unit, high-grade and beautiful appearance, movable clip design, easy to install. Specification： Model T-103C Power taps @100V 3W, 6W Power taps @70V 1.5W, 3W Impedance Black:Com White:3.3KΩ Red:1.7KΩ SPL(1W/1M) 88dB Frequency response (-10dB) 120-20KHz Speaker driver 3" x 1 Cutout size 95mm Dimensions 104 x 78mm Weight 0.5Kg