Pyle PHSP101T 9.7-Inch Indoor/Outdoor with 70 Volt 20 Watts PA Horn Speaker Aluminum Housing Power/Load Rating: 20 Watts RMS Nominal Impedance: 8 Ohms 70 Volt Transformer Tapping @ 20 / 10 / 5 Frequency Range: 400 Hz - 5 KHz SPL(@ 1W/1m): 102dB Mounting Bracket & Hardware Included Dimensions: 9.7'' H x 9.7'' W x 11.3'' D Color: Grey Sold as : Unit Aluminum Housing - SPL(@ 1W/1m): 102dB Power/Load Rating: 20 Watts RMS - Mounting Bracket & Hardware Included Nominal Impedance: 8 Ohms - Dimensions: 9.7'' H x 9.7'' W x 11.3'' D 70 Volt Transformer Tapping @ 20 / 10 / 5 - Color: Grey Frequency Range: 400 Hz - 5 KHz