Overview Reviews Product Description A speaker set with built-in powerful stereo amplifier featuring USB and SD inputs, 2 microphone inputs & RCA line input and adjustable bass & treble control. Suitable for karaoke shows, exhibitions, fairs, etc.. Product Videos Custom Field Product Reviews Write a Review Write a Review × Skytec SPB-12 Powered 12" Speaker Set Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *