Comfort Strap
The wrap-around headband distributes weight evenly and blocks peripheral light, holding the face module securely against any head shape.
Human State Optimization
Float Above Stress.
STILL is a multisensory immersive eye mask. Spatial audio, precision facial haptics, blackout immersion, and guided rhythm work in concert to shift you from high-pressure mode into deep recovery — in minutes.
The first piece
We don't treat disease. We optimize human state.
STILL is the first piece of Mental Infrastructure — a hardware ritual for state recovery.
The experience
Not an eye mask. A personal state-switching system.
STILL pulls attention from the outside world back into the body — through sound, rhythm, and synchronized haptics — creating the sensory conditions for stillness, focus, or pre-sleep recovery.
Anatomy of a session
Five minutes, from noise to still.
Every STILL session is a composed arc — sound, rhythm, and touch arriving in a deliberate order. Here's what the first five minutes feel like.
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0:00
Vision goes to zero
The blackout cushioning closes around your eyes. The busiest sensory channel of your day is the first one to go quiet.
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0:30
The soundfield unfolds
Six speakers open a space that feels wider than the room. Sound stops sitting in your ears and starts moving around you.
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1:30
A third rhythm appears
Each ear receives a slightly different frequency. Your brain fuses them into one slow beat — a rhythm that exists only between your ears — and begins to settle toward it.
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2:30
Sound becomes touch
A low-frequency layer crosses into the 25–150 Hz band and lands as gentle vibration at the third eye and temples, in sync with everything you hear.
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5:00
You're here
The day is still out there. You're not. Stay under, or lift the eye module and step back into the room — arriving, not escaping.
The form
Precision-crafted for the human face.
Contoured geometry. Medical-grade fabric. A shape engineered for total blackout immersion — not pressure.
The wrap
Full coverage. Zero distraction.
The wrap-around strap blocks peripheral light and anchors the eye module in place. Velcro closure adjusts to any head shape.
Not another gadget.
A sensory architecture.
Made for real life
Engineered to Detach.
Lift the face module off in one motion — check your phone, take a call, or step back into the room while STILL's sound and haptics keep running. Total blackout when you want it; eyes open when you don't.
Eye Module
The sensory core — five haptic transducers, six spatial audio speakers, and blackout-grade cushioning. Lift it away and the open eye-ports let you see again, without taking STILL off.
Control Unit
The brain of STILL. Bluetooth 5.3, onboard processing, rechargeable battery. Mounts magnetically to the forehead bridge.
Every angle
See it from every side.
Ready to float above stress?
See pricing
The science
The Science of Sensation
Human State Optimization as a unified technology framework — every sensory channel in STILL is engineered on a documented acoustic principle, not a vibe.
01
Multisensory Neural Fusion
多感官神經融合技術
Six speakers — three per side, with fully independent left and right channels — build an enveloping soundworld that moves around you: approaching, orbiting, receding. Fused with facial haptics, blackout immersion, and guided voice, every channel arrives as one composed experience.
Spatial audio is sound engineered to exist in space — not just in your ears.
02
Binaural Beats
雙耳節拍技術
Play one frequency into your left ear and a slightly different one into your right, and your brain fuses them into a third, slower rhythm — one that exists only between your ears. The catch: it only works when each ear receives its own clean channel. That's usually a job for headphones, so STILL builds the condition into the hardware.
Binaural beats are an auditory phenomenon: two slightly different frequencies, one per ear, fused by the brain into a third, slower rhythm.
03
Precision Vibro-Entraining
精準低頻共振技術
Between roughly 25 and 150 Hz, sound stops being something you only hear and becomes something you feel. STILL translates this band into gentle physical vibration at high-perception points — third eye, temples, eye area — so the same composition reaches you through two senses at once.
25–150 Hz is the band where sound crosses from hearing into touch.
04
BioAdaptive Intelligence
AI 自適應人體狀態引擎
Version 2 integrates IMU, heart rate, posture, and acoustic compensation — adapting vibration intensity, frequency, and soundfield in real time to your state.
Coming in V2An honest comparison
Sleep mask, headphones, or STILL?
Each does its one job well. STILL is built for the moment you want all three senses working together.
| Sleep mask | Headphones | STILL | |
|---|---|---|---|
| Blackout immersion | ✓ | — | ✓ |
| A soundfield that moves in space | — | ✓ | ✓ |
| Independent per-ear channels (binaural-ready) | — | ✓ | ✓ |
| 25–150 Hz felt vibration | — | — | ✓ |
| Sound and touch, composed together | — | — | ✓ |
| One device, one session | — | — | ✓ |
Nothing wrong with a good sleep mask or a good pair of headphones — we use both. STILL exists for the session where vision, sound, and touch are meant to arrive as one composed experience.
Two ways to begin
Pick the STILL that fits.
Same multisensory foundation. STILL Pro adds extra haptic motors and earlier access to new features.
STILL
The foundation.
$549.00 USD
- 3D spatial audio · 6 speakers
- Precision facial haptic · 1 motor
- Guided mindfulness experience
- Companion app included
STILL Pro
Three motors. More everything.
$639.00 USD
- Everything in STILL
- Precision facial haptic · 3 motors
- Priority software updates
- Priority creator-platform access
Both models ship worldwide. In-app purchases and creator subscriptions are currently billed through the Apple App Store and Google Play.
Frequently asked
What is Chill STILL?
Chill STILL is the first piece of Mental Infrastructure — a multisensory immersive eye mask that combines 3D spatial audio, precision facial haptics, and guided rhythm to shift the wearer from high-pressure mode into deep recovery in minutes. It is built on Chill Company's Human State Optimization methodology and ships with a companion app.
How much does Chill STILL cost?
There are two tiers: STILL is US$549 and STILL Pro is US$639. STILL includes 3D spatial audio (6 speakers), one precision haptic motor, the guided experience, and the companion app. STILL Pro adds three precision haptic motors plus priority software updates and creator-platform access.
What is the difference between STILL and STILL Pro?
STILL Pro includes everything in STILL plus three precision haptic motors (versus one), priority software updates, and priority access to the creator platform. Both tiers share the same 3D spatial audio, guided experience, and companion app.
Is Chill STILL a meditation or sleep device?
Not exactly. STILL is Personal Recovery Technology — it actively moves your nervous system into recovery, rather than just playing sounds while you drift off. It is maintenance for the system your whole day runs on, so you return sharper — not a way to escape the world.
Don't binaural beats require headphones?
Normally, yes — the effect depends on each ear receiving its own frequency. STILL's six speakers run fully independent left and right channels beside each ear, so the headphone condition is built into the hardware. No extra gear needed.
What does the 25–150 Hz vibration feel like?
Like a slow, quiet pulse resting on your forehead and temples — closer to a cat's purr than a phone buzz. Intensity is adjustable in the app, from barely-there to clearly present.
Will STILL disturb someone sleeping next to me?
It's designed to keep the experience with you. The speakers sit close to your ears and play at low levels, and the haptic layer is quiet by nature. Sessions run fully wireless over Bluetooth 5.3.
Can I compose my own sessions?
Yes. The companion app is a multi-track composer: arrange spatial audio, binaural layers, and 25–150 Hz haptic lines on a timeline — or stream sessions made by creators in the STILL community.
Above Stress. Into STILL.
A few minutes to switch back to your center.
STILL is for personal relaxation and state optimization. It is not a medical device, and is not intended to diagnose, treat, cure, or prevent any disease.