9H of 15 kHz Sine Wave Sound Frequency Tone

The hearing property of the human ear is limited. The human ear can perceive sound within a frequency range of 20 Hz to 20 kHz. The sound frequency below 20 Hz is Infrasonic sound and above 20 kHz is Ultrasonic sound.

=============================
Check my previous video
=============================

=============================
feel FREE to SUBSCRIBE!
=============================

=============================
Check this PLAYLIST!
=============================

Subscribe and Like for more videos
Thanks for watching

#relaxingmusic #relax #soulrelaxation #sleep #meditate