Questions about Amazon Kindle Touch 2022

Hi. I realise about the Kindle, advertising and so on. The advertising doesn't bother me personally at all. I have read that you can also connect Bluetooth headphones. Can I also access my Audible with this model? It has been asked here before with two answers. One says yes. The other no.... Not really helpful.

Does this model have an audio book function?

Какие языки поддерживает Kindle. Спасибо

Can‘t find any cases for this modell, can somebody help me or advice me?

Is this product with or without advertising?