Is it true that ktv invites free singing?

This should be true. It is usually done by KTV activities. In fact, most KTV private rooms are not expensive. Pay attention to drinks. My KTV is 2 hours/kloc-0 yuan, and it is forbidden to bring your own drinks. Think about it. Singing a song for 1 or 2 hours, without drinking some water, your throat will definitely be uncomfortable. If there are many people, it would be a bit shabby to just sing.