Using a headset will improve communication between you and your teacher. It will also reduce the audio around you and your voice will be clear.
If you don’t have one don’t worry. However, it will be difficult to hear and your voice will not be as clear.
Step 2 - Install zoom
Use your smartphone, computer or mac or all of them. You will be able to follow the classes from home, work or even on the beach. As long as you have an internet connection.