Headphones at 5Hz?

[ManFromGlass]

So Sony says their MDR-M1 headphones can reproduce 5Hz.
What the heck would that sound like? A slow clicking? A sensation as opposed to a sound?
I’m assuming that’s not the frequency that crowd control sound cannons use to cause bowel evacuation.

[jimjazzdad]

Be careful if your nose starts to run while listening to 5 Hz on cans - it may be liquid brain leakage!

[Drew Stephenson]

I think listening to music at 5Hz might be the ultimate hipster claim...

[tea for two]

It's a vibrator.
For binaural beats supposedly.
So if you see anyone freaking out wearing these sony....

[ManFromGlass]

A single cycle of 5Hz must be quite long. How would it fit in such small earcups . . . . . ?