Knocks: Listen & Download Knocks .mp3 Error! Change your browser, please! ⇓ Download Male scream underwater ⚠ Ghost voices ⚠ Blood splash ⚠ Fright men ⚠ Shock ⚠ The appearance of the poltergeist ⚠ Horror rumble ⚠ Big fizzy sound ⚠ Metallic influx ⚠ Female scream underwater ⚠ Sound for scary moment on video ⚠ Man hit with an ax ⚠ ★★★★★