What is the Q Collar, the device NFL players are wearing around their necks

If you’ve been watching any NFL games recently, you might have noticed some players sporting white (or in some cases, black) horseshoe-shaped collars around their necks. But what are they?
If you’ve been watching any NFL games recently, you might have noticed some players sporting white (or in some cases, black) horseshoe-shaped collars around their necks. But what are they?

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What is the Q Collar, the device NFL players are wearing around

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What's Around These NFL Players' Neck??

Sorry if this has already been answered, but what are these collar things that I see in a couple of the guy's necks? : r/nfl

What is the Q Collar, the device NFL players are wearing around

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