The PA50BT PA System from Kustom combines convenience with quality without sacrificing portability. You'll find that the PA50 BTworks well in a variety of environments, amplifying vocals, instruments, keyboards, drum machines, audio devices, and much more. The PA50BT PA System from Kustom combines convenience with quality without sacrificing portability. You'll find that the PA50BT works well in a variety of environments, amplifying vocals, instruments, keyboards, drum machines, audio devices, and much more. The two 4.5" speakers and high-frequency driver provide just the right combination of high and midrange sounds. This balance allows your vocals to cut through the mix while minimizing any harsh and unwanted frequencies. The PA50 BTConstruction is based on the same tried-and-true techniques as the rest of our speaker line. This includes a heavy-duty steel grill and rigid corners. This model also utilizes a high-frequency driver for crisp, accurate reproduction of treble frequency and articulate speech. Whether you're a soloist or acoustic duo, the PA50 works well when positioned on a standard speaker stand. As your following grows, so does your sound system; multiple units can be connected to increase the sound coverage in your venue of choice.