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Vagal Oh!
Wireless and discreet. App-controlled.
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Vagal Oh! Wireless tVNS
Vagal.oh device size dimensions and scale reference
Vagal.oh device size dimensions and scale reference
Vagal Oh! Wireless tVNS
Vagal Oh! Wireless tVNS
Vagal Oh! Wireless tVNS
Display stand
Vagal Oh! in tin packaging
Rated 4.9 out of 5

Vagal Oh! Wireless tVNS

Wellness Unleashed

Wireless transcutaneous vagus nerve stimulation (tVNS). Compact, rechargeable, and ready to use out of the box. In stock. Ships from Reno, NV.

One-time purchase
$49900
$39.00 Recover Tone FREE HSA/FSA eligible · No subscription
45-night sleep trial. Not sleeping better? Full refund.
Only 13 left in stock·  Free shipping from the United States
Orders before 1:00pm Pacific on working days usually ship the same day.

Only 13 left in stock

Buy now
FREE Bonus: Recover Tone $39.00 Free
A stimulation protocol designed to help you recharge and recover.
Ends October 16th. Applied at checkout automatically
Free Shipping Ships from the United States  ·  In Stock
45-Night Sleep Trial
CE & FCC Certified
Doctor Recommended
No Subscriptions
Secure Checkout · AMEX HSA/FSA
★ 4.8 /5.0
11 Verified Reviews 10,000+ Shipped

“Long COVID left me bedridden for months. Six weeks in with Vagal Oh! and I'm back to gentle yoga and cooking meals again. It's not a magic cure, but it's given me hope and tangible progress.”

Lila K., verified buyer

“Long COVID left me bedridden for months. Six weeks in with Vagal Oh! and I'm back to gentle yoga and cooking meals again. It's not a magic cure, but it's given me hope and tangible progress.”

Lila K., verified buyer

Vagal.oh device size dimensions and scale reference
Oh! Wireless tVNS

Calm your mind.
Anywhere.

The world's smallest wireless vagus nerve stimulator. Clips to your ear. Pairs with your phone. Disappears into your life.

One-time purchase
$499
No subscription. No hidden fees.
Feel like you again
45-night sleep trial 10,000+ shipped No subscription HSA/FSA eligible

Your vagus nerve is the missing piece.

It's the longest nerve in your body, connecting your brain to your heart, lungs, and gut. It controls the switch between "go" and "rest" -- and until recently, there was no practical way to support it at home.

Decades of clinical research changed that. A branch of this nerve surfaces in your ear, and gentle electrical stimulation through a small clip can activate it.

Vagal Oh! puts that science in your pocket. Wireless, wearable, and controlled from your phone.

Non-invasive auricular tVNS 25+ published studies Used by 10,000+ people Wireless and app-controlled
Man wearing the Vagal Oh! on his ear, side profile

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Brain Ear Heart Lungs Gut

The vagus nerve runs from brain to body. The ear is your access point.

The missing piece

Your vagal nerve connects your brain to your body

Your vagus nerve is the longest nerve in your body. It regulates the balance between your sympathetic and parasympathetic systems -- the two halves of your autonomic nervous system.

Clinical researchers have been studying ways to activate it non-invasively since the early 2000s. The breakthrough: a branch of the vagus nerve is accessible through your ear.

Decades of clinical research show that gentle electrical stimulation through the ear can reactivate the vagus nerve. The same science used in hospitals and research labs -- now wireless and wearable.


Vagal Oh! dimensions: 0.93 x 0.93 x 0.77 in (2.35 x 2.35 x 1.96 cm), weight 0.63 oz (18 g)
Meet Oh!

This tiny thing changes everything.

18 grams. No wires. No screen. Clip on, open the app, and let your nervous system find its rhythm.

18g 60-min battery IPX4 BLE
1

Pair

One-time Bluetooth setup via the free Vagal Tones app.

2

Clip

Attach to your tragus with a dot of conductive paste.

3

Relax

Tap start. Most people feel calmer within minutes.


The science behind sessions that work

Your skin's resistance shifts constantly with temperature, moisture, and movement. A voltage-controlled device can't compensate. EverSteady measures impedance 50,000 times per second and adjusts every pulse, so the current reaching your vagus nerve never drifts from what you set.

Voltage-controlled output
Voltage-controlled device: current output drifts as skin impedance changes
Current drifts with skin changes
EverSteady current-controlled
EverSteady current-controlled: voltage adjusts to maintain consistent current
Current stays locked on target
50,000/s
Impedance checks
1uA
Resolution
Biphasic
Tissue-safe pulses
How EverSteady works

What changes

Built for better

Wireless and wearable

18 grams. No wires. Clip on your ear, open the app, and go about your day. Nobody will know it's there.

App-controlled precision

Set your frequency, intensity, and session length from the Vagal Tones app. Load pre-built protocols or create your own.

Research-grade parameters

0.1-100Hz frequency range, current-controlled output, real-time impedance monitoring. The same precision used in university research labs.

Non-invasive

Auricular vagus nerve stimulation through a comfortable ear clip. No implants. No consumables. Rechargeable via USB-C.


Smiling woman with a towel over her shoulders after a workout, wearing Vagal Oh! on her ear
"I use it every morning while making coffee. 15 minutes, and I just feel more together for the day. My husband bought one too after trying mine."
Prina M. -- verified buyer

Vagally Improved

Real people. Real progress.

4.8 average from 10 verified Oh! reviews

★★★★★
"My functional medicine doctor recommended Vagal Oh! six months ago. I use it every evening now -- it's become as routine as brushing my teeth. The build quality is excellent, the app is intuitive, and I genuinely look forward to my daily session. Worth every penny."
Lila K. Verified
★★★★★
"I pair it with my Oura ring, and the HRV data speaks for itself. Sleek design, science-backed approach. Exactly what I was looking for."
Alex V. Tech CEO Verified
★★★★
"Took me a week to find the sweet spot for placement. Once I got it right? Wow. My HRV improved noticeably. Really impressed with the precision."
Sophie W. Verified
★★★★★
"Bought this for my teen daughter during exam season, and now I steal it for myself. We call it our 'zen gadget.' Worth every penny."
Carlos M. Verified

Built for better

One device. Your rules.

Pre-loaded modes for different goals. Add more via the Vagal Tones app.

Close-up of the Vagal Oh! worn on the ear Vagal Oh! on its magnetic display stand

  • Parasympathetic activation

    25Hz continuous protocol. Activates the parasympathetic branch of your autonomic nervous system.

  • Evening wind-down

    Low-frequency protocol designed for end-of-day use. Many users make it part of their nightly routine.

  • Focus + clarity

    For cognitive performance. Before meetings, study sessions, or creative work.

  • Autonomic balance

    The vagus nerve plays a central role in autonomic regulation. Targeted frequencies support vagal tone.

  • Custom tones

    Load protocols from the store, or create your own via the Tone Research Portal.

0.1-100Hz frequency range. 0.1-4.0mA current-controlled. Research-backed parameters.

Controlled via the free Vagal Tones app

iOS App Store Google Play

Vagal Oh! fitted with its silicone ear hook
25+
Clinical studies
18g
Ultra-light
60min
Battery life
BLE
App control
Vagally Understood

The science of getting better

Your ear contains a branch of the vagus nerve -- the only place it's accessible from outside the body. Vagal Oh! sends current-controlled micro-pulses through this pathway, activating the parasympathetic branch of your autonomic nervous system.

Transcutaneous auricular vagus nerve stimulation (tVNS) has been studied in clinical settings for over two decades, with more than 200 published papers exploring its effects on autonomic function.

Vagal Oh! uses the same EverSteady technology as our clinical tVNS Stimulator -- same frequency range, same precision -- in a form factor you can wear anywhere.

Technical Specifications
Frequency Range0.1 - 100 Hz (+-0.1 Hz)
Amplitude Range0.1 - 4.0 mA (+-0.1 mA)
Pulse Width10 us - 5 ms (+-1 us)
WaveformBiphasic Square Wave
Impedance MonitoringReal-time, 1-100k ohm
Data Logging8 Hour Session Logs
Battery Life60 Minutes (86mAh)
ConnectivityBluetooth Low Energy (BLE)
Water ResistanceIPX4 (splash-proof)
Weight18g
Safety StandardsIEC 60601-1, ISO 13485
RegulatoryFCC Certified, CE Mark

Vagal Oh! device face
Who we are

Why thousands trust Vagal

We started in 2019, making electrodes for university research. Seven years and 10,000+ devices later, we build the tools clinicians recommend.

7

Years in tVNS

From research lab to your ear.

10k+

Shipped

40+ countries worldwide.

MD

Recommended

Physicians and therapists.

CE

Certified

IEC 60601-1 + FCC.


Sleep better, or your
money back.

A 45-night sleep trial: over six weeks of nightly use. Not sleeping better? Full refund. No hassle.

We can offer this because most people who try it, keep it.

Feel like you again $499.00

One-time purchase. No subscription. HSA/FSA eligible.

Returns are simple: email us for your returns number, then a full refund within 10 working days of your return arriving. Full details.


Find your fit

Three ways to feel like you again

Buddy and Oh! share the same current-controlled EverSteady engine. Most owners choose Buddy; Oh! is for wearing it on the move.

Most chosen

Vagal Buddy tVNS

$399 $349

Screen and joystick, 4+ hour battery, and it charges wirelessly even during a session. Rated 4.9 by owners.

See Buddy
You are here

Vagal Oh!

$499

Wireless and discreet. 18g, app-controlled, about 60 minutes per charge.

Feel like you again
Try it first

Vagal Boost

$159 $59

Plugs into your phone. Voltage-controlled, six fixed modes. A low-cost way to feel what stimulation is like.

See Boost


Customer Reviews

4.9
Rated 4.9 out of 5
5 stars
7
4 stars
1
3 stars
0
2 stars
0
1 star
0
V
Verified Customer May 6, 2025

For anyone with digestive issues: TRY THIS

IBS ruled my life for years. Bloating, pain, anxiety about leaving the house… Then I read the vagus nerve affects gut health. Vagal Oh! + a probiotic regimen = MIRACLE. I use it after meals, and my digestion is smoother than it’s been in a decade. I’m even reintroducing foods I’d sworn off. Science is cool, y’all.

V
Verified Customer May 5, 2025

Better than my $5k biohacking gadgets

I’m a tech CEO and a total biohacker. I’ve tried everything from cryotherapy to hyperbaric chambers. Vagal Oh! is the only device that’s had a measurable impact on my HRV (heart rate variability). I pair it with my Oura ring, and the data doesn’t lie: my recovery scores improved by 30% in a month. I use it during investor pitches to stay sharp but calm. Sleek, science-backed, and no weird side effects. Shut up and take my money!

V
Verified Customer May 4, 2025

From chronic fatigue to functional human!

Long COVID left me bedridden for months. I could barely walk to the mailbox without crashing. My functional medicine doctor recommended Vagal Oh! to support my nervous system, and wow. I started with 5-minute sessions twice a day, and slowly, my energy began to stabilize. Six weeks in, I’m back to gentle yoga and cooking meals again. It’s not a magic cure, but it’s given me hope and tangible progress.

V
Verified Customer May 2, 2025

For PTSD survivors: this is a game-changer

After surviving a car accident, my nervous system was a minefield. Loud noises? Panic attacks. Crowds? Dissociation. My trauma therapist suggested Vagal Oh! as a grounding tool. I use the “SOS” setting when triggered, and it’s like an anchor pulling me back to my body. Over time, my tolerance for stress has increased. I even went to a concert last month! It’s not a cure, but it’s empowered me to reclaim parts of my life I thought were gone forever. Infinite stars.

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Questions and honest answers

What is Vagal Oh! and how is it different from the tVNS Stimulator?

Vagal Oh! is our wireless vagus nerve stimulator. Same current-controlled stimulation, same EverSteady technology, same frequency range as the tVNS Stimulator -- but wireless and 18 grams. The tVNS has a built-in screen and joystick. Oh! is controlled via the companion app (called Vagal Tones on iOS and Vagally Better on Android). Choose tVNS for standalone control. Choose Oh! for wireless freedom.

You again, wirelessly.

No prescriptions. No side effects. Just you, feeling like yourself again.

Feel like you again -- $499.00
45-night sleep trial Free shipping HSA/FSA eligible