Every sound

Press play on any of them. Open the mixer at the bottom to layer a tone under soft noise, set a sleep timer, or switch a beat between binaural and isochronic.

Solfeggio tones

The nine-tone set from modern sound-healing tradition.

174 Hz

174 Hz

The lowest Solfeggio tone, used for grounding and ease.

Traditional use

285 Hz

285 Hz

A low tone traditionally linked to restoration.

Traditional use

396 Hz

396 Hz

Traditionally tied to releasing fear and grounding.

Traditional use

417 Hz

417 Hz

Associated with change and clearing the slate.

Traditional use

528 Hz

528 Hz

The famous "love" tone, popular for relaxation.

Some evidence

639 Hz

639 Hz

Traditionally linked to connection and warmth.

Traditional use

741 Hz

741 Hz

A brighter tone tied to expression and clarity.

Traditional use

852 Hz

852 Hz

Associated with intuition and inner quiet.

Traditional use

963 Hz

963 Hz

The highest Solfeggio tone, used in deep meditation.

Traditional use

Brainwave beats

Binaural and isochronic beats tuned to delta, theta, alpha, beta and gamma.

Delta · 1 Hz

1 Hz beat

A very slow beat for the deepest part of sleep.

Some evidence · headphones

Delta · 2 Hz

2 Hz beat

A slow delta beat to settle toward sleep.

Some evidence · headphones

Theta · 6 Hz

6 Hz beat

A theta beat for meditation and drifting focus.

Some evidence · headphones

Alpha · 8 Hz

8 Hz beat

A gentle alpha beat at the edge of calm.

Some evidence · headphones

Alpha · 10 Hz

10 Hz beat

A relaxed-focus alpha beat for calm clarity.

Some evidence · headphones

Beta · 16 Hz

16 Hz beat

A faster beta beat for alert concentration.

Some evidence · headphones

Gamma · 40 Hz

40 Hz beat

A fast gamma beat associated with peak attention.

Some evidence · headphones

Notable frequencies

Tunings and rates with their own stories: 432 Hz, 40 Hz, Schumann, Om and more.

432 Hz

432 Hz

An alternative tuning some find warmer than 440.

Some evidence

40 Hz

40 Hz

The 40 Hz rate from active neuroscience research.

Backed by research

An audible take on Earth’s 7.83 Hz resonance.

Backed by research · headphones

The pitch traditionally tuned to the chant of Om.

Traditional use

111 Hz

111 Hz

A resonance measured in ancient stone chambers.

Some evidence

Coloured noise

White, pink and brown noise, generated live on your device.

An even hiss that covers distractions.

Backed by research

A softer, balanced noise often used for sleep.

Some evidence

A deep, low rumble many find good for focus.

Some evidence