The synchronized swimming pool is equipped with underwater speakers to ensure that athletes can hear the music clearly even under the water.

Synchronized swimming (English name: Synchronized swimming) is a beautiful water sports event that incorporates dance and music. It was originally an aquatic performance event during the intermission of swimming competitions. It is composed of swimming, skills, dance and music, and is known as "water ballet". Synchronized swimming is an artistic and elegant sport that also requires strength and skill and requires many years of continuous training to master.

A speaker is a transducer device that converts electrical signals into acoustic signals. The performance of the speaker has a great impact on the sound quality. The speaker is the weakest component in audio equipment, and it is also the most important component in terms of sound effects.