Ceiling speaker with power rating of 6 W (selectable to 6, 3 and 1.5 W), 100 V line. 3" speaker. Complies with voice alarm norm EN54. Frequency response of 93 ~ 21,100 Hz. SPL max 92,4 dB (1 m, 1 kHz). Dimensions 104 mm (Ø) x 128 mm (depth), ceiling mounting hole 86 mm Ø. Metal cover. White colour RAL 9016.