Change the way you entertain outdoors with the Polk Audio Atrium 6 All-weather Speaker, built to withstand the elements while providing life-like audio. This pair of speakers exceeds baseline industrial and military specifications for environmental endurance, meaning they can withstand the worst that Mother Nature can dish out. With aluminum grilles and brackets, complete with stainless steel brass hardware, you can rest assured that your investment won’t rust, so you’ll enjoy unmatched audio quality for years to come. Speaker Features Power Handling: 10 - 100 W Max Frequency Response: 50Hz - 27kHz Audio Components: 5 ¼� driver & 1� dome tweeter Sensitivity: 90 dB Impedance: 8 Ohms Dimensions (H x W x D): 296.9mm x 195.3mm x 222.3mm Weight: 4.9kg