1 Hour WATER BUBBLES Black Screen Audio Only HD

1 Hour water bubbles sound effect on loop — 1 hour black screen — bubbling calm.

THIS VIDEO IS A STILL IMAGE — black screen with a small line-art icon in the middle. There is NO ANIMATED VIDEO. Pure audio for hearing-test checks, alarm-replacement loops, study background, sleep timers, or just letting the sound run while you do something else.

#blackscreen #audioonly #1hour

Audio: "Bubbles into a pipe, Volmerange-les-Mines, France" (radio aporee / Internet Archive item aporee_42420_48380, CC BY 3.0).