Xprite Compact 200 Watt High Performance Extra Slim Siren Speaker (Capable with Any 100 - 200 Watt Siren) Speaker: Heavy Duty, Mounting Brackets, 200W / 8 Ohm. Capable with Any 100 - 200 Watt Siren Sytem ( Requirement: The actual output wattage of siren  100W ) Speaker Dimension: 5.75" W x 5.5" H x 2.5" D Corrosion-resistant aluminum housing with Black Finish Package including: 1 x Xprite Compact 200 Watt High Performance Extra Slim Siren Speaker (Capable with Any 100 - 200 Watt Siren)