Oh mee-oh bah-bee-noh kah-roh
Here's a breakdown:
* O: Pronounced like the "O" in "go"
* mio: Pronounced like "mee-oh"
* Babbino: Pronounced like "bah-bee-noh"
* caro: Pronounced like "kah-roh"
The emphasis is on the first syllable of each word.
It's important to remember that Italian pronunciation is more nuanced than this simple breakdown, and the exact pronunciation can vary depending on the region and dialect. However, this should give you a good starting point for understanding the pronunciation of this famous aria.