If my headphones can only play frequencies as low as 20Hz, how can I hear a 7Hz Theta frequency or a 2Hz Delta frequency or the low frequency of any other binaural beat?

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If my headphones can only play frequencies as low as 20Hz, how can I hear a 7Hz Theta frequency or a 2Hz Delta frequency or the low frequency of any other binaural beat?

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The binaural beat frequency is actually created by your brain, not heard through the headphones. For example, if a 100Hz frequency is played in the right ear and a 107Hz frequency is played in the left ear, your brain will create a binaural beat of 7Hz, the difference between those two frequencies. To learn more about the science behind our brainwave audio technology, please explore the links below about the science behind the audio technology.