Pair of multipurpose indoor/outdoor speakers in black for permanent or temporary outdoor use,Sensitivity: 86 dB.50 watts of RMS power, with 100 watts of peak power.4-inch woofer, 25mm poly cone midrange and 20mm Piezo dome tweeter.Wall-mountable, UV-treated ABS enclosure; mounting brackets included.Each speaker measures 8.25 x 5.25 x 5.25 inches (HxWxD); 1-year warranty The Dual 4 inch outdoor speaker series is designed as a multipurpose speaker and will deliver accurate high fidelity sound in exterior or interior environments. Weather-resistant design and construction provide optimum durability for permanent or temporary outdoor use. 100 watts peak -50 watts RMS. Polyelite woofer with PVA surround. 40mm polypropylene cone midrange, 20mm Piezo tweeter.