How can I tell my son's parents when he is playing with his classmate's mobile phone?

1. communicate with your son: first, communicate with your son to understand the whole story, and ask him why he borrowed his classmate's mobile phone to play, and whether he realized that this behavior was inappropriate.

2. Contact the parents of classmates: Then, you need to contact the parents of classmates who lent out their mobile phones, explain what happened and apologize to them. You can express your willingness to compensate for any loss or inconvenience that may be caused.