A man from Wasilla, Alaska has created a TV that turns up the volume when you scream at it.
Footage shows the creator and his father screaming at the television to make the volume increase.
The filmer said: "I like to build useless technology that poorly solves problems. In this clip, my dad and I are using a TV that I built, which only turns up by screaming at it. Otherwise, it turns down."
The footage was captured on December 16, 2019.