Introducing this fantastic PA & Karaoke Speaker set. Coming with a built-in high power amplifier, adjustable bass and treble control, USB and SD inputs, 2 microphone inputs and RCA line input. Perfect for PA installations, parties, exhibitions, fairs, karaoke shows, gym instructing and much, much more. Portable, versatile, sturdy and all at a great price, you'll find these speakers providing a top performance night after night. So, why not order today and experience the full potential of this awesome product with a little help from us here, at Electromarket.