20 Hz
20 Hz
Watch 20 hz Cuevana3. Human hearing is capable of detecting sound waves between 20 and 20.000 Hz. … merely a small fraction of the frequency spectrum. Most sounds around us go unnoticed.
- Gênero: Terror
- País: United Kingdom
- Diretor: Chris Keller
- Fundida: Alix Wilton Regan,
