"¿Qué escuchan ustedes?" would be "what do you listen to", using the plural sense of "you".
Ustedes escuchan
Escucha (usted) escuchan (ustedes) escuchas escucháis
What are the children listening to.
It means,What are the children listening to?
It is ustedes or in Spain vosotros but mostly ustedes
Ustedes están bien -You all are good.
"Ustedes" means "you" in the plural, the polite form
ustedes significan todo para mi ustedes son mi mundo
you guys are intellectual
Vuestro means "your" but it's plural so it is different from tu
"Ustedes son" means "you all are" in Spanish. It is used to refer to a group of people in the formal second person plural form.
I'm bored. And you?