Pairing to sets to my iPhone so 2 people can listen

We want to be able to both listen to the same music or audio book from my iPhone using our space A40s. How do we do it?

Not really sure it is possible to share to two earbuds at same time other than sharing the same pair with one bud apiece

You can’t. This feature is exclusive to Apple AirPods or some Beats earbuds.