Heinrich's IPSW15 is a pendant 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 6” full range speaker driver is designed of wide frequency response 100Hz -16kHz, the multiple power taps of 3.75W/7.5W & 15W could meet different applications varies from room size and ambient noise surroundings. Easy and secure wall mount installation to be suspended on the roof the hotel lobby or super market's case desk. It is ideal choice for industrial and commercial applications for hotel, super market, exhibition center, shopping mall, where background music and paging is needed.