I think it is very useful. I've seen it in our restaurant and used it. It is easy to carry and move, and it has many functions. Like KTV system, many new songs and old songs are on it, and you can also order food. It is totally acceptable for our people to want to sing occasionally. The most important thing is that their sound quality is good and their sense of use is greatly improved. * * * Enjoy KTV to break the traditional karaoke mode and create a business model covering users' culture, entertainment and consumption. As the concentration of offline traffic, physical businesses are eager to use the fragmented time to show their voices, empower businesses, satisfy users, and finally achieve a win-win situation for all parties. At present, * * * KTV project is sought after by everyone. There is no problem making money. You can find a suitable restaurant and set up several sets of KTV equipment. At present, the KTV usage rate of * * * is high, except for returning to the time early, we all lie in the back to make money.