The sms-flat loudspeaker is designed to generate optimum masking sound in a tight space where a more standard loudspeaker wouldn’t fit. Equipped with two drivers in a dipole configuration, the sms-flat provides an effective loudspeaker in a very compact form factor. Power : 10 w line voltage : 25 v sensitivity : 85 db enclosure material : painted steel frequency response : 100 hz to 8 khz driver 2.5 x 10 cm (1” x 4”) full range color : black or white weight : 1.13 kg (2.5 lbs) shipping weight : 1.21 kg (2.7 lbs) box dimensions : 23 x 29.5 x 9.5 cm (7¾ x 3¾ x 9")