Final markdown! Please consider the sub-microphone as the main item, with the karaoke unit as a bonus. This is a set including the Yumegroup Karaoke 1 Ban YK-3008 and a duet sub-microphone. However, the Karaoke 1 Ban has some issues. It freezes mid-song. Sometimes it works fine. When it freezes, you can unplug it and restart it, and it will work again, but sometimes it will play through a whole song. Therefore, I'm selling the Karaoke 1 Ban as junk. The optional second sub-microphone works without any problems. I am selling the YK-1005 sub-microphone and the Karaoke 1 Ban as parts. Please understand that the Karaoke 1 Ban is being sold as junk.