This ibastek Karaoke Mixer features two mic inputs, four outputs, and a variety of input/output ports including a headphone jack, DisplayPort, USB, and Multi-Channel System. The mixer also boasts a range of features such as a digital display, 12 inch speakers, equalizer, USB port, multimedia player, microphone talk-over function, and record function. Perfect for Karaoke Entertainment and musical performances, this mixer from ibastek offers a high-quality audio experience that will impress any crowd. It works the led lights on the speaker dont it sounds good not bluetooth.