Heinrich's OGSTS15 is a speaker for outdoor landscapes. It comes with a built-in transformer that reduces line losses and allows multiple speakers to be connected in parallel easily. The speaker has 5.5” +1.5” two-way drivers that offer a wide frequency response of 120 -15kHz. It also has multiple power taps of 7.5W & 15W to cater to different room sizes and ambient noise levels. The speaker's fibreglass enclosure has a stump shape and is weatherproof, making it ideal for outdoor areas in industrial and commercial settings such as train stations, shopping malls and parking lots. The speaker is easy to install securely on the wall.