20 Hz2015
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.
- Released
- 19. 5. 2015
- Runtime
- 5 min
- Genres
- Horror
- Certification
- NO
- Country, language
- GB · EN
- Community rating
- 6.0 · 1 votes