Philmore 8-Inch Indoor / Outdoor Waterproof PA Horn Speaker, 60Watts Peak Waterproof - completely sealed for outdoor, marine or mobile applications Rugged high-impact white plastic construction Stainless steel hardware used to assemble the horn bracket. Dimensions: 8"" H x 4-1/2"" W x 9-1/4'' D 30W continuous, 60W peak; 8 ohms; 10 oz ferrite magnet; frequency resp. 450-10 KHz.