You're telling a friend about your shopping trip. Drag the correct articles to show how we introduce something new vs. talk about it again.

Yesterday I bought a new phone. I love the phone — it has an amazing camera! I also got an hour of free tech support with it.

Yesterday I bought a new phone.

Use a (indefinite article) for first mention — your friend doesn't know which phone yet. It's new information!

I love the phone — it has an amazing camera!

Use the (definite article) for second mention — now your friend knows exactly which phone you mean.

I also got an hour of free tech support with it.

Use an before vowel sounds. "Hour" has a silent 'h', so it starts with the vowel sound /aʊ/.