Features include: 8 ohm, 10W horn speaker with built-in non-polarized capacitor; all metal weather proof construction for indoor or outdoor use; Universal swivel mount base; Beige baked enamel finish. Specifications: Power Capacity: 10 watts (continuous) ;Impedance: 8 ohm; Frequency Response: 300-10,000 Hz; Dispersion Angle: 120; Sound Pressure Level: 110dB at rated output measured on 4 axis; Sensitivity as a microphone: -26dBM ; Dimensions: 6-1/8" Bell x 6-1/2" Deep