The PA150TFXBT 150-Watt P.A. System combines performance, convenience, and portability. You'll find that the PA150TFXBT works well in a variety of environments, amplifying vocals, instruments, keyboards, drum machines, audio devices, and more. The PA150TFXBT 150-Watt P.A. System combines performance, convenience, and portability. You'll find that the PA150TFXBT works well in a variety of environments, amplifying vocals, instruments, keyboards, drum machines, audio devices, and more. The four 4.5" speakers and high-frequency driver provide just the right combination of high and midrange sounds. This balance ensures your vocals cut through the mix while minimizing harsh and unwanted frequencies. The PA150TFXBT construction 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. For the soloist or acoustic duo, the PA150TFXBT works well when positioned on a standard speaker stand.