The T-740T is a waterproof projection speaker built-in 70v/100v transformer. The 70v/100v transformer technique reduces line losses on longer distance and allows easy parallel connection of multiple loudspeakers. The built-in two 5-inch full range speaker drivers are designed of wide frequency response 120 to 15kHz, the multiple power taps 10W and 20W are helpful for different applications varies from room size and ambient noise surroundings. The ABS enclosure and metal bracket are of white color. Easy and secure wall mount installation through the supplied mounting bracket. It is ideal choice for industrial and commercial applications in the outdoor area of parking, park, garden, corridor and playground where paging and background music is needed.