What is this called?
Computer
What are these?
Earphones
What is he doing?
Talking on the phone
What is this?
Smart Phone / Phone / Cell Phone /
What is this?
A notification
what question do you ask for someones phone number?
"What is your phone number?"
What is this called?
Laptop
What are they doing?
Sending a text message
What are these?
Headphones