What should I buy to see the smartphone screen on TV?

I saw a demonstration in the past, and he connected his smartphone to the TV and showed it to me.

What should I buy to see the smartphone screen on TV like this?

1605 2017-06-28 Gentleman

popular How do I recycle and recycle foil like cooking foil?

popular Can I listen to music with Bluetooth earphones on the plane?

popular How can I connect to watch a video on my phone on TV?

popular What is the nationality of Minnie?

popular Is hair spray not allowed on the plane at all?

Same Tag In the case where one of the two mobile phones under the same name is suspended due to non-payment of charges

Same Tag My smartphone camera doesn't work, what should I check?

Same Tag Is there a way to copy the data as it is when changing from Galaxy s6 to Galaxy s8?

Same Tag Is there a cell phone made in China that is good to listen to music?

Same Tag Why does it say that there are no members in the line?

Same Time Can I buy a reserve cap separately?

Same Time What should I buy to see the smartphone screen on TV?

Same Time Do you have a hair dye for gray hair?