how do I restore my sons ipod shuffle to factory settings

Hi, connect the iPod to your computer and click "Restore iPod". If you're using a Mac with macOS Big Sur, you'll find it in Finder after clicking the name of your iPod shuffle. If you're using an older Mac or a Windows machine with iTunes, click the iPod icon on the top of the window - the screen with the "Restore iPod" button will pop up.