My new smartphone is very convenient.

The teacher gave me a book.

The teacher gave me some advice.

He won a majority of the votes in the election.

I talked to him through the intercom.

The rechargeable battery has run out, so I'm going to buy a new one.

I bought a new headphone.

Have you seen my charger?

I bought new earphones.

I would be in trouble without my mobile phone.