The T-300R is a 5.5-inch garden speaker with built-in 70/100V transformer. The 70/100V transformer technique reduces line losses on longer distance and allows easy parallel connection of multiple loudspeakers. The built-in 5.5-inch speaker driver is designed of wide frequency response 120 to 16kHz, the multiple power taps 7.5W and 15W are helpful for different applications.