Speakers produce sound when they vibrate, then the air in that space vibrate too. After that, the sound travels outside of the speakers. When the vibrations( sound) travels out of the speaker, it is the sound waves that carry the sound through the air, and eventually to the eardrum so that people can hear. So speakers and sound waves are related because when there is sound produce in the speaker it is the sound wave that does the job of carrying the sound to the ears.
How are speakers and sound waves related?