Several silicone buds of different sizes are included in the box of your SPC Zion Air Pro, so you can change them according to your needs. This will make your use experience much more comfortable. By default, the size of bud that the headphones are equipped with is M.
Once you have chosen the right size, you will have to adjust to fit your ear as follows:
That's it! Now you can listen to as much music as you want without risk of them falling out while you are walking or doing sports.