Our All Environment all purpose speaker features a built-in 70V transformer with 20, 10, 5, and 2.5 wattage taps . It has an elegant molded black cabinet and a fine mesh aluminum grille. It has a 5 1/4 inch woofer and a 3/4 inch mylar dome tweeter. It offers a 40 watt RMS with a 80 watt maximum. It features an adjustable aluminum u-style mounting bracket. Its shape allows corner mounting. They are sold in pairs. Also available with a white housing color (SP-500AEW/T), additional woofer sizes without transformers of 4 (SP-450AE) and 5 (SP-500AE), and 6 (SP-600AE) inches. All versions are weatherproof.