Your SPC ETHER 3 PRO comes with ear tips in different sizes so you can swap them out according to your needs. This will make your user experience much more comfortable. By default, the earbuds come with size M installed.
Once you have chosen the right size, you will need to fit it to your ear as follows:
That's it! Now you can listen to as much music as you want without worrying about them falling out while walking or exercising.