01

What is Bio-Tuning®

Your body has a resonant frequency.

A clinically-grounded process that finds the precise frequency at which your nervous system settles into balance — then writes it into the One Device you wear, as a frequency that is yours alone.

Every living system vibrates. Using real-time heart-rate-variability biofeedback, a certified practitioner locates the single point where your sympathetic and parasympathetic nervous systems reach equilibrium.

It is not a generic wellness frequency. It is yours — discovered through your own physiology, and built on the forty-year research of Dr. Jeffrey Thompson at the Center for Neuroacoustic Research.

i.
Thompson, J. D. The discovery of the bio-tuning method: locating the fundamental resonant frequency of the human nervous system through real-time HRV measurement. Center for Neuroacoustic Research.
Fig. 01 — Resonance locatorHRV · 240 s
ANS ACTIVITY FREQUENCY (Hz) →
Sympathetic
Parasympathetic
Equilibrium →
Equilibrium
Real-timeHRV biofeedback
Per individualNo two are alike
02

How it works

Four steps. Ninety minutes. Permanent.

You bring your One Device to a certified clinic and leave with your frequencies encoded into it for good. Here is exactly how the session runs.

1
Intake
Baseline reading.

The practitioner takes a five-minute resting HRV baseline — heart-rate variability, breath, and autonomic posture.

≈ 15 minutes
2
Sweep
The frequency sweep.

The clinical instrument sweeps across the resonance window while your nervous system is monitored live, searching for one point.

≈ 30 minutes
3
Lock
The lock-in.

At the moment your two nervous systems meet, the instrument locks. That equilibrium becomes your personal frequency — yours alone.

≈ 15 minutes
4
Encode
Written into the device.

Your personal frequency is added to the device as an 11th, alongside the ten it already plays. You wear it home.

≈ 30 minutes
03

What you feel

Your own frequency, given back to you.

When the signal your body resonates with is reintroduced — worn continuously, all day — three things follow.

i

A return to homeostasis.

Not rest-and-digest dominance — that would only trade one chronic state for another. True balance between both branches of the autonomic nervous system, where the body finally holds its energy in reserve.

ii

Coherence and balance.

Breath, heart, and brain entrain to a single carrier signal. The chaos quiets. Internal rhythms synchronize — measurably, within weeks.

iii

Precision, not guesswork.

Not a frequency someone picked on YouTube. The exact set your nervous system stabilizes on — and only that.

Homeostasis is the prerequisite for healing. Only in balance — with energy held in reserve — does the body awaken its own inner physician.
04

What it delivers

A device that knows you.

Every device plays the same ten frequencies. Bio-Tuning remembers an 11th — yours — so no two Bio-Tuned devices are alike.

Once located, your practitioner writes it in.

Your personal frequency is added to the ten the device already plays — an 11th tone, remembered in the module. From that moment, it emits your frequency continuously, all day long.

i.
A nervous system in homeostasisBalance between both branches — not chronic rest-and-digest — so the body holds the reserve it needs to maintain itself.
ii.
Regulation tailored to youNot a population average. Not a preset. The exact set of signals your physiology resonates with.
iii.
Recovery, calm focus, restorative sleepThe effects clients describe most in the first thirty days.
iv.
A truly personal wearableYour serial, your 11th frequency — remembered in the module. One of one.
Fig. 02 — Encoded module1:1 scale
11 FREQUENCIES + LIGHT
Programme10 + custom
Paired+ light spectrum
One of one
05

The Ten Frequencies

Every frequency, a purpose.

Ten frequencies, each paired with a colour of light, cycle continuously on every device — the same for everyone. Bio-Tuning adds an 11th: your own.

174Hz
Foundation
Quartz
A natural anaesthetic. Sends a signal of security and grounding to the body.
285Hz
Cellular Repair
Red
Helps tissue return to its original form. Restoration at the cellular level.
396Hz
Liberation
Orange
Releases fear and guilt, clearing the foundation for change.
417Hz
Change
Yellow
Clears disruptive influence and facilitates the undoing of difficult situations.
432Hz
Harmony
Yellow/green
The “natural tuning.” A grounding reference tone many find calming.
528Hz
Transformation
Green
The “Miracle Tone.” Associated with repair, clarity, and transformation.
639Hz
Connection
Light blue
Harmonises relationships and encourages understanding and tolerance.
741Hz
Expression
Dark blue
Cleansing and problem-solving. Supports clear self-expression.
852Hz
Intuition
Violet
Awakens intuition and returns the system to a state of inner order.
963Hz
Awakening
Brighter violet
The crown frequency. Associated with oneness and pure awareness.
11
Your Custom Frequency White light
Optional, with the Bio-Tuning add-on. Measured from your HRV at a certified clinic, set by the practitioner, and written into your device as an 11th frequency — yours alone, on top of the ten every device shares.
Each tone is paired with light. Every frequency is matched to a corresponding wavelength of light, so the programme works on the nervous system through sound and colour together — continuously, as you wear it.
Exclusive partnership

Standard Device vs. The Bio-Tuning Edition

Standard One Device
  • Plays all 10 universal frequencies
  • The same frequencies for every wearer
  • Passive delivery via sound + light
  • No personalization required
Bio-Tuning × One Device
  • Adds your personal frequency as an 11th
  • Programmed specifically for your unique Hz
  • Plays all ten plus your custom 11th, all day
  • Extends your Bio-Tuning sessions into daily life

Once your Bio-Tuning practitioner determines your fundamental frequency, it is added to The One Device as an 11th — so alongside the ten universal tones, the pendant also plays your own, all day while you wear it.

Unlock Your Frequency →
06

The science

Forty years of research, in the device you wear.

Bio-Tuning® is the life’s work of Dr. Jeffrey Thompson — and the same frequencies power his library of personalized audio programmes.

Companion programmes · mybiotuning.com

Personalized brainwave-entrainment audio, on the same frequencies.

The frequencies we encode into your One Device also power a library of practitioner-calibrated audio programmes — for sleep, focus, recovery, meditation, and deep nervous-system work.

Wear the device all day. Press play when you want a deeper, targeted session. Each reinforces the other.

Programmes
Sleep · Focus · Recovery
Calibration
Built on your frequencies
Delivery
Streaming & download
Explore the programmes at mybiotuning.com ↗
Dr. Jeffrey D. Thompson
Dr. Jeffrey D. Thompson
D.C., B.F.A. · Center for Neuroacoustic Research
“Every nervous system has a fundamental frequency — a single tone at which it resolves into balance. The work of forty years has been to locate it, and now to wear it.”
40+ yearsClinical research
200+ programmesReleased to date
Cited inNeuroacoustic literature
FounderNeuroacoustic Research
07

Where to get tuned

Find a certified clinic.

Bio-Tuning® is delivered in person, by certified practitioners only. Twelve flagship clinics below — see all 142 worldwide at mybiotuning.com.

Where to be Bio-Tuned®. Each clinic below carries the HRV instrument and is licensed to encode your One Device on site.
Encinitas
USA · CA
Center for Neuroacoustic Research
Dr. J. Thompson · TF-04127
By appointment<
New York
USA · NY
Modern Vagus Clinic
Dr. R. Park · TF-04221
By appointment
Austin
USA · TX
Resonance Lab Austin
M. Castellanos, L.Ac. · TF-04318
By appointment
Vancouver
CAN · BC
Pacific Somatic Institute
Dr. A. Tanaka · TF-04412
By appointment
London
UK
Marylebone Neuroacoustic
Dr. H. Okafor · TF-04528
By appointment
Amsterdam
NLD
De Frequentie
L. van Houten · TF-04617
By appointment
Berlin
DEU
Kreuzberg Resonance
Dr. K. Wagner · TF-04723
By appointment
Zürich
CHE
Limmat Integrative Medicine
Dr. S. Fischer · TF-04841
By appointment
Tokyo
JPN
Shibuya Kōshin Clinic
Dr. Y. Mori · TF-04915
By appointment
Singapore
SGP
Tanglin Wellness Group
Dr. P. Krishnan · TF-05028
By appointment
Sydney
AUS
Paddington Polyvagal
Dr. C. Whitlock · TF-05119
By appointment
São Paulo
BRA
Vila Madalena Vagus
Dr. L. Pereira · TF-05204
By appointment
Showing 12 of 142 certified clinics Search affiliates at mybiotuning.com ↗
08

For practitioners

Bring the most personal frequency therapy to your practice.

No proprietary chair, no clinical buildout. Acquire the HRV instrument, complete the certification, and deliver an encoded One Device to every client.

Offering Bio-Tuning® transforms The One from a universal wellness wearable into a precision instrument — calibrated, individual, and deeply healing.

The process requires no proprietary chair and no clinical buildout. You acquire the compact HRV measurement device developed through Dr. Jeffrey Thompson's research, complete the certification, and you are equipped to assess, programme, and deliver a uniquely encoded One Device to every client who walks through your door.

Each session is a single fee, paid by the client. The encoded device continues working long after they leave your clinic — a lasting wellness tool that keeps your practice present in their life every day.

Fig. 03 — Practitioner kitHRV instrument
HRV · LIVE 528 Hz BIO-TUNING HRV INSTRUMENT 528
SCREENLive HRV trace
FREQUENCY DIALSweep + lock
FINGER CLIPHRV sensor
ENCODED DEVICEClient wears home
PortableNo chair required
Cert.Practitioner training
Pay-per-sessionDirect to client
Who it's for
Functional medicine, somatic therapists, integrative practitioners.

Practitioners already working with the autonomic nervous system, HRV, breathwork, or vibroacoustic therapy. Bio-Tuning slots cleanly into existing protocols.

What you get
HRV instrument · Encoding rig · Certification.

The compact HRV measurement device, the encoding interface that writes to the One module, training, and a listing on our practitioner directory.

What clients pay
A single appointment fee, set by you.

Direct relationship. We do not take a percentage of the encoding session. We supply the device, you deliver the calibration, the client wears the result home.

A wearable, calibrated to you.

Bio-Tuning® is delivered by appointment, through certified practitioners only. Order your One Device today — it plays the ten frequencies out of the box. Then visit a certified clinic to add your custom 11th.

Available worldwide · 142 certified clinics · Updated May 2026
The One Device is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease. Bio-Tuning® technology developed through the research of Dr. Jeffrey Thompson and available through certified practitioners only. Individual results vary. References to heart-rate variability, autonomic regulation, and vibroacoustic therapy are illustrative of the underlying mechanisms cited throughout this page; they are not endorsements of The One specifically.