You probably haven't thought much about vuvuzelas in the last four years. Back in 2010, these South African plastic horns made headlines when they became an annoying distraction during the World Cup.
Now, the World Cup is back -- and so are vuvuzelas. At least, one media company, international sports network beIN Sports, is introducing a magic vuvuzela that changes the channel to BeIN.
As BeIN's website explains, the Gamechanger vuvuzela includes a mini microphone that recognizes the instrument's unique sound and tells its 8-bit microchip to respond. Then that microchip sends an infrared signal to your cable box, commanding it to change to beIN Sports.
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The video above illustrates a scenario in which the Gamechanger could come in handy: A guy is about to sit down for a chick flick and is preparing for a couple hours of testosterone-draining entertainment. But then he whips out his vuvu and it's soccer time!