Acoustic column with power rating of 20 W (selectable to 10 W) in 100 V line. 4 x 2.5" speaker. Frequency response of 170-15.000 Hz. Sensitivity 91 dB (1 W, 1 m and 1 kHz). Maximum sound pressure level 104 dB (20 W, 1 m and 1 kHz). Weight 2.04 kg. Dimensions 106 x 405 x 75 mm. Finishing in white aluminium, with swivel bracket for wall mounting. Suitable for outdoor and indoor use.