All the little parts that you need

My sister recently got interested in going to a karaoke bar every week with some friends. Her husband decided to buy her a little karaoke machine to use at home. She was hoping to get a wireless microphone to use with the machine.

The microphone that came with the machine has a cord, and she likes to dance while she is singing. She finds herself almost tripping over the cord when she is dancing. The problem seems to be that she doesn’t know all of the different parts that she will need for the wireless microphone to work.

I am trying to help her find out, and have been trying to understand if the wireless microphones we have been finding have their own amplifier or not, and what she would be able to use for speakers. Can she use her current karaoke machine at all for any of that? Or her TV set? We are feeling pretty stupid right about now!