20 Hz Test Tone 1 Hour

20 hertz test tone with a single sound frequency that runs for 1 hour.

[tinicum]

This and a cup of coffee really get my day moving.

[sonicwaveinfinitymiddwelle]

if you can't hear it is it safe to blast this out at full volume

[chrisstopher]

It feels like my skull disappeared and someone started massaging my brain wonderfully l. This is trippy.

[i]

下肢10~20Hz
增加骨密20-50
頭部20~40
手部與手臂 20~70
30:00

[finnishspotter]

this thing is making my headphones vibrate

[minesa]

Sinto meu corpo vibrar como se estivesse num barco com o motor ligado.

[huesped-iuwh]

Weird!!! I can hear this frequency better with my right ear but not a 16.000 hz frequency that I can hear better with my left ear

[Joeys-tech]

What are you expect it’s a low frequency are used it to blow my speakers on purpose and they can accidentally blow your speakers when you leave and don’t want it to blow

[ЗолотойДракон-ьт]

Почему звука нету на 25гц, ..ну очень смешно!!!😊