Calmfield — tune your space to the Earth's rhythm
Schumann Resonance · 7.83 Hz

Tune your space to the Earth's rhythm

Calmfield fills your room with the planet's own frequency — for deeper sleep, calmer focus, and grounded, quiet days.

Shop Calmfield ★★★★★ Loved for sleep & focus
7.83 · 6 · 10 Hz tuned frequencies 24h battery life Pure sine wave — completely silent Free shipping
One device · everything you need

One device that will fulfill your needs

Calmfield device
Calmfield
Schumann resonance generator · 7.83 · 6 · 10 Hz
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From

a room full of noise to the Earth's own rhythm

Your frequency journey

One device, three settings — and a calm that tends to build the longer it's part of your space.

The first evenings

Switch it on and the room takes on a quieter feel. Many people simply notice they settle a little more easily — a gentle backdrop to wind down to, with no sound and no light.

Settling into a rhythm

Used regularly, Calmfield becomes part of the shape of your day: 6 Hz for evenings, 7.83 Hz for grounded calm, 10 Hz for focused, unhurried work.

Part of your space

Over time it fades into the background — the thing you switch on without thinking, the quiet field you've come to associate with rest and clear-headed days.

Not just another resonance device
The Calmfield difference

100% Satisfaction Guarantee

We're confident Calmfield will earn its place on your nightstand. If it doesn't, send it back.

  • Three genuinely tuned frequencies — 7.83 · 6 · 10 Hz
  • Pure sine wave, completely silent
  • Up to 24h battery on a single charge
  • 30-day home trial · 1-year warranty
Calmfield — find what fits you
Meet Calmfield

The Earth has a rhythm. Now your room does too.

The space between the ground and the sky pulses at around 7.83 Hz — the Schumann resonance, the steady natural rhythm life evolved inside.

Calmfield is a palm-sized device that quietly puts that rhythm back into a room — a clean, pure-sine field you don't hear, but settle into. Pick one of three settings and let it work in the background of your day.

Explore the frequencies
Frequency 01 · Theta
6Hz

Theta — the wind-down rhythm

Theta activity sits in the roughly 4–8 Hz band — the slow, drifting rhythm your mind moves through as it lets go: the last quiet minutes before sleep, deep meditation, that unhurried daydreaming state where thoughts loosen and settle. At 6 Hz, Calmfield's lowest setting is tuned to the heart of this range.

It's the mode made for the end of the day. Set it on your nightstand an hour before bed and let the room take on a slower, quieter pulse — no sound, no light, just a calm field to unwind into. Research into theta oscillations continues to explore their role in relaxation, memory and restorative rest.

Reference: theta-band EEG research, ScienceDirect (S0028393213002820)

The Earth's own frequency

High in the space between the ground and the ionosphere, the planet hums at a steady 7.83 Hz — the Schumann resonance, a real electromagnetic pulse kept alive by lightning striking somewhere on Earth every moment of every day.

It's the rhythm life evolved inside, and it's the reason 7.83 Hz is Calmfield's signature setting: a grounded, quietly balanced field for calm, clear-headed days. Not louder, not stronger — just the Earth's own frequency, put back into the room around you.

The Schumann resonance is a well-documented geophysical phenomenon.
Frequency 02 · Schumann
7.83Hz
Frequency 03 · Alpha
10Hz

Alpha — calm, awake focus

The alpha rhythm sits in the roughly 8–12 Hz band — the brain's relaxed-but-alert state. It's the quiet clarity of being absorbed in a task without tension, the easy focus that shows up when the mind is settled rather than scattered.

At 10 Hz, right in the middle of that range, this is Calmfield's daytime mode. Set it on your desk while you work or read and let the room hold a calm, steady field — clear enough to concentrate, quiet enough to stay relaxed.

Alpha-band activity is a well-established feature of relaxed wakefulness.
The details

Technical specifications

Frequencies7.83 Hz · 6 Hz · 10 Hz
WaveformPure sine wave
EmitterEnhanced Energy Emitter
Intensity0–100% adjustable
Field indicatorMechanical dual-compass
Battery3000mAh Li-polymer
Battery life24h gentle / 18h calm / 10h deep
Charging~4 hours · USB (DC 5V/1A)
Size / weight11 × 11 × 4.6 cm · 220 g
Recommended distance0.25–1 m
Tune into calm

Bring the Earth's rhythm home.

Free shipping · 30-day trial · 1-year warranty

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Good to know

Questions, answered

What exactly does Calmfield do?
Calmfield fills the space around it with a gentle low-frequency resonance field, tuned to 7.83 Hz (the Earth's Schumann resonance), 6 Hz theta and 10 Hz alpha. Many people use it to create a calmer environment for sleep, relaxation and focus.
Do I need to wear it or point it at me?
No. The field is omnidirectional — just set Calmfield on a desk or nightstand within about a meter. No contact, no aiming, nothing to wear.
How do I choose a frequency?
Use 6 Hz for deep relaxation and winding down before sleep, 7.83 Hz for grounded, balanced calm, and 10 Hz for relaxed daytime focus. Switch anytime with the selector and dial the intensity from 0–100%.
Will it disturb my sleep with noise or light?
No. Calmfield runs on a clean pure sine wave and is completely silent — no hum, no fan. The status indicator is a soft glow you'll barely notice in a dark room.
How long does the battery last?
Up to 24 hours on gentle mode (18h calm / 10h deep) from the 3000mAh battery, and about 4 hours to recharge over USB. You can also run it continuously while plugged in.
What's your return and warranty policy?
Every Calmfield comes with a 30-day home trial and a 1-year warranty. If it isn't for you, send it back for a full refund.

Calmfield is a wellness product. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease.