Binaural beats do not work over speakers — the effect depends on each
ear hearing a slightly different tone. Please use headphones or stereo earbuds.
Binaural Beats
Presets
Now playing
—
Stopped
Elapsed: 0:00
Total: 0:00
Remaining: 0:00
Sessions always fade out gently over the final ~45 seconds — they never stop abruptly.
20
Session length before the fade-out.
2.0
Difference between the ears (delta → beta).
100
Base tone pitch (lower = softer).
60%
Overall loudness. Start low.
35% noise
Pure toneBrown noise
Keep screen awake
Optional. Requires iOS 16.4+ or a recent Android Chrome. This only stops the screen
dimming — it does not guarantee uninterrupted playback.
If you manually lock the screen or switch apps, audio may still pause (see below).
iPhone / locked screen:
iOS Safari does not permit this kind of audio to keep playing while the screen is locked — the
sound pauses on lock and automatically resumes when you unlock. This is a Safari restriction, not
a fault in the page. For a continuous session (e.g. falling asleep), turn on
Keep screen awake above so the phone never locks — note the
obvious downside of a lit screen. On Android Chrome, backgrounded playback is more reliable but
still not guaranteed.