Pink Noise is a great tool to use for sleep, relaxation, meditation, yoga, healing, reiki, and mindfulness. Select a track that you like best and set it to "repeat track" or "loop" for endless, seamless pink noise. 　　 　　Pink Noise has equal energy in all octaves of frequency. In terms of power at a constant bandwidth, pink noise falls off at 3 dB per octave. At high enough frequencies pink noise is never dominant. (White Noise is equal energy per hertz.) 　　 　　Pink Noise is generally considered more soothing and less harsh than White Noise - thus making it excellent for relaxation!