https://www.youtube.com/watch?v=QKlMTQesq7g3.5Hz (Delta range) - remedy for depression & anxiety, promotes a feeling of unity with everything, accelerated language retention, enhancement of receptivity, regeneration of whole being, DNA stimulation.
我試左兩日,有輕微效果,聽聽下幾好聽又唔會悶,咪試下