EMF Support Without Impacting Device Performance
Designed for everyday peace of mind.
A thin sticker that adheres easily to phones, laptops, tablets and other personal electronics. No batteries, no charging, no app. Every sticker carries the same library of 200+ frequencies imprinted in the Harmoni Pendant.
Rated 4.9/5 by verified buyers

- Form
- A thin, round gold sticker
- Fits
- Phones, laptops, tablets, routers and more
- Signal
- Won't interfere with performance or connectivity
- Upkeep
- None. Made for long-term everyday use
- Guarantee
- 60-day money-back guarantee
Your Phone Is Always on You. So Is Its Radiation.
Your phone sends and receives signals all day: in your pocket, in your hand, on the nightstand. Add the laptop, the tablet and the router, and your devices fill your day with man-made EMF.
None of it is going away. So the question isn't how to avoid EMFs anymore. It's how to feel steady in the middle of them.
Your body runs on electrical impulses. Dr. Martin Pall, PhD, Professor Emeritus of Biochemistry and Medical Science at Washington State University, has published 26 papers exploring how manmade electromagnetic fields may interact with that system.
- 3.8 billionsmartphones, and millions of cell towers to support them
- 200 billionmore connected "smart" devices emitting microwave radiation
- 50,000"wireless" satellites set to blanket the earth in microwave radiation

Meet the Harmoni
EMF Sticker
A thin, frequency-imprinted sticker that goes on any device. No apps. No charging. No setup. Apply it once and it stays in place.
It carries the same frequency library used in every Harmoni Pendant, now built into a sticker for the devices you use most. Harmoni was made to help neutralize the chaotic frequencies from modern tech and create healthier environments, for you and the people you love.
200+ Frequencies
in Every Sticker
Every Harmoni sticker is imprinted with the same library of more than 200 frequencies as the Harmoni Pendant. Nothing in it runs on a battery or a chip. Four families make up the core of the library, from the Earth's own frequency up to the terahertz band.
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7.83 Hz
The Schumann resonance
The Earth's own background frequency, the natural resonance between the ground and the upper atmosphere. Physicist Winfried Otto Schumann predicted it in 1952, and it's often called the Earth's heartbeat.
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174–963 Hz
The nine Solfeggio tones
A nine-tone scale tied to the old solfège syllables (Ut, Re, Mi, Fa, Sol, La) and used widely in sound and meditation practices today.
-
MHz
Megahertz frequencies
Higher frequencies, measured in millions of cycles per second, imprinted alongside the lower tones.
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THz
Terahertz frequencies
The band between microwaves and infrared light, measured in trillions of cycles per second.
The nine Solfeggio tones
Tap a tone to hear it.
Tone descriptions reflect how sound and meditation traditions describe each frequency. They are not medical claims. The sticker itself is silent; the buttons above let you hear each tone.
Put One On Everything That Emits.
One sticker per device. Your phone and laptop come first. These are the ones families forget.
-

Tablet
On the back, up by the camera.
-

WiFi router
On the top of the router.
-

Baby monitor
On the back of the parent unit.
-

Cordless phone
On the charging base.
Designed for the Devices
You Use Every Day
Small enough to forget about, made to stay put, and built on the same frequency library as the Harmoni Pendant.
Ultra-thin design
Slides under any phone case without changing the feel of your device.
Strong adhesive
Designed to stay put through heat, cold, and daily handling.

200+ frequencies
The same frequency library imprinted in every Harmoni Pendant.
Zero signal interference
No effect on Wi-Fi, Bluetooth, charging, or battery life.
Works on everything
Phones, tablets, laptops, routers, baby monitors and cordless phones.
Grounded in research
Backed by ongoing, evolving research
Harmoni has been the subject of an internal pilot study exploring how the body responds to everyday electromagnetic environments. We're continuing to invest in research as the science develops.
An open-label pilot evaluation was conducted to assess the efficacy of the Harmoni Pendant in reducing stress and the impact of electromagnetic fields (EMF). The evaluation was conducted by eight doctors from across the United States, spanning specialists in various fields, using Heart Scientific HRV technology, which measures stress and nervous system health.
The pendant was evaluated, not the sticker. The sticker carries the same library of 200+ imprinted frequencies.
The preliminary open-label pilot evaluation found:
Inner calm
Heart rate variability increased significantly
Heart rate variability, or HRV, is an increasingly well-researched way to measure how stressed-out or calm someone is.
Lower stress
Designed to reduce feelings of EMF-induced stress
Participants reported reduced feelings of stress from EMFs, along with a greater sense of overall wellness, while wearing the pendant.
Preliminary results from a small, open-label pilot evaluation, not a controlled clinical trial. Individual experiences vary. Before-and-after images are illustrative. The Harmoni Pendant is not a medical device.
What Sticker Customers Say
Verified buyers, in their own words.
“This is perfect for my modem, phone and laptop computer. Now I feel safe!”
“I trust this company. They have never let me down on the several orders I have placed. Stickers are lovely. The pendants are OUTSTANDING. I get so many compliments on them and gals that get one as a gift from me wear them and love them.”
“So glad I purchased these. The protection is definitely worth it.”
“I feel better knowing this device is protecting me.”
“It’s easy to use. Put on iPhone and protect you from exposure to EMF”
“Thank you for making a product to protect against EMF!!!”
Reviews from verified buyers, shown as written. Quotes reflect individual experiences and are not a guarantee of results.

One for Every Device in the House
Your kids' tablets, your phone, the laptop and the router are all on at once.
The 6-pack works out to under $20 a sticker, so the devices your family uses most can each have their own.
Choose Your PackChoose your stickers
One sticker per device. Buy 2, get 1 free, or buy 3, get 3 free.


Buy 2, Get 1 Free
3 stickers: phone, laptop and tablet
$26.63 per stickerSave $39.95
Add to Cart
Buy 3, Get 3 Free
6 stickers: six devices covered, each sticker goes on once
$19.97 per stickerSave $119.85
Add to Cart- 60-day money-back guarantee
- Ships in 2 to 3 business days
- No batteries, no charging, nothing to maintain
60 Days to Try Them at Home.
Put them on your phone, your router, your laptop, and the devices your kids use most. Live with them for two months. If you're not thrilled, send them back for a full refund. We cover the return.
Questions, answered
Still wondering about something? Email support@harmonipendant.com and a real person will get back to you.
How do Harmoni stickers work?
Each sticker is imprinted with more than 200 frequencies, the same library imprinted in every Harmoni Pendant, including the Schumann resonance (7.83 Hz) and the nine Solfeggio tones. It has no battery and no electronics, so there's nothing to charge or switch on.
Will they slow down my Wi-Fi or Bluetooth?
No. They don't block or deflect the signal. Your Wi-Fi speed, Bluetooth range, and battery life stay exactly the same.
Where should I put them?
The back of your phone, or inside the case. The top or bottom of your laptop. The back of a tablet. The housing of your Wi-Fi router, the baby monitor, or the cordless phone base.
How many do I need?
One per device. Start with the tech you're on the longest: your phone, your work laptop, your router. The 6-pack is the popular pick for a family.
Do they wear out?
They're made for long-term everyday use. There's nothing to recharge or replace, and the adhesive is made to stay put through daily handling.
Can I take one off and move it to another device?
You can, but the adhesive loses grip after removal. We recommend one sticker per device.
Is there research behind it?
The Harmoni Pendant, which carries the same frequency library, was the subject of an internal, open-label pilot evaluation run by eight US doctors using Heart Scientific HRV technology. Participants reported feeling less stressed and a greater sense of overall wellness. The stickers were not part of that evaluation. It's a preliminary evaluation, not a controlled clinical trial.
Are the stickers a medical device?
No. Harmoni stickers are a wellness accessory. They aren't intended to diagnose, treat, cure or prevent any disease. If you have a medical condition, talk with your doctor.
What if they aren't for me?
Send them back within 60 days for a full refund. We cover the return shipping. No questions asked.
When do orders ship?
Orders ship from our US warehouse in 2 to 3 business days. Most orders arrive within the week.



