20 Hz
20 Hz
Watch 20 hz StreamingCommunity. 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.
- Genere: Horror
- Nazione: United Kingdom
- Direttore: Chris Keller
- Cast: Alix Wilton Regan,
