There are many DePIN projects, but ones that are useful and profitable are rare. XPIN covers over 150 countries, has good signal, and the devices can mine and make money. It has a user base, many rewards, and stable income. There is currently a trading competition; buying XPIN can earn you prizes. The operation is simple and suitable for travelers. If you want to participate, go to xpin.network or Ave.ai, as opportunities are rare.