
Lie down
On the MAT after work, after the drive, after the shift. Or the Strap on your waist on the days you need it.

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B2B & CollabsTension relief for back, neck and shoulders. Deep, physical sound that eases a day of sitting, and comfort on the hard days of your cycle.
Deep, physical sound that eases a day of sitting.
Sound familiar?
You hold the day in your body. Shoulders up from the screen, a lower back that complains after forty-five minutes in the car. A massage cannot outdo eight hours of sitting.
“It’s become an everyday thing.” The neck and shoulders take it first, the lower back next.
“My arms, shoulders, neck, back and knees ache from lifting him.” The body carries the day home.
“Three or four days of my life out of every 26.” Comfort that is yours, lying down, nothing to swallow.
6.5 h
The average American adult sits each day, an hour more than a decade ago.
45%
of office workers deal with a sore, tense neck in a given year.
84%
of women in a US study report moderate to severe period discomfort.
Sources: JAMA, 2019; systematic review of office workers, 2023; study of 200 US women, 2023. Full citations at the bottom of the page.
Slow, rolling waves under your shoulders, hips and legs. The jaw lets go. The lower back stops bracing. Nobody had to knead anything.
Slow waves under your shoulders and hips. The lower back stops bracing.
What changes
Fifteen minutes, lying down, as often as you like.
The desk lands in your neck and shoulders first. The upper zones find them first.
After the drive, after the shift, after carrying the kids.
Lying down, nothing to swallow. The Strap sits flat on the lower abdomen.
Fifteen minutes a day keeps a body loose. The habit your massage therapist wishes you had.
Comfort is maintenance
Nothing to knead. Nothing to book.

On the MAT after work, after the drive, after the shift. Or the Strap on your waist on the days you need it.

A Relaxation or Recovery session in the free app, or what you already unwind to.

Fifteen to twenty minutes. Shoulders, hips and legs unknot together.
How it works
Woojer turns the low end of sound, 1 to 250 Hz, into precise physical sensation. Muscle spindles read it and report less tension, which is why muscles feel looser afterward.
Tension is also stress stored in the body: the clenched jaw, the braced lower back. Researchers track the shift toward rest-and-recover with heart rate variability.
Music, or one pure frequency sent to your shoulders or lower back with the Frequency producer program. Fifteen minutes that works.

MAT · Vest · Strap
MAT for shoulders, hips and legs. Vest for shoulders and upper back at the desk. Strap on the waist, for the office and cycle days.
Every Woojer works with the free Woojer Wellness app and any audio you love. 30-day money-back guarantee.
In the free Woojer Wellness app
Composed for the body first. Free from day one, for MAT, Vest and Strap.
Off the clock
Slow the pace. Let the shoulders drop. For desk workers at the end of the day.
After the workout
Ease into what comes after. For tired legs after a shift or a long drive.
Two minutes
Come back to yourself. For a two-minute reset, lying down or at your desk.
Programs · Premium and Ultimate⁴
From 1 December. Guided programs, first minute to last. Ultimate comes with every new Woojer: 1 month with Vest or Strap, 3 with MAT, 6 with MAT Plus, 12 with MAT Pro.
Zone by zone
Send the sensation to your shoulders or your lower back, and leave the rest quiet.
Frequency producer
Dial in a single frequency and feel it, from the deepest end of the range to the top.
Breath training
Guided breathing patterns you feel on the chest, so the rhythm is in the body, not in your head.
Prefer your own music or a guided body scan? Any audio in, physical sound out.
Reviews
Real customers and reviewers, real bodies. MAT, Vest and Strap.
“It really relaxes all your muscles and calms your soul. Excellent to use after any bodywork as it loosens up those little spots that didn't quite let go.”
“I feel like the vibrations just enveloped me. It was so relaxing.”
“The vibration can be adjusted from very light to surprisingly powerful. At higher intensity, the sensation can feel almost like a deep-tissue massage or being in a jacuzzi.”
“It's like syncing your body to the frequencies. After a session I feel much more at ease and less tense, especially around my lower back and neck.”
“Get a free back massage every time I use this, great product does as advertised”
“Like a massage for your mind and body. The haptic technology creates a unique, immersive experience that helps me feel more relaxed and present.”
“A lot of tension’s gone from my shoulders.”
“What I did not expect was the muscle relaxation. On a higher setting it's deeply soothing. Best money I spent on my wellness.”
“I also wear it at work because it's like a back massager to music. Absolutely love it. Makes everything come alive.”
“I love to put it on my back, lie in bed and watch an action movie. It's a real extra dimension.”
“The vibration from the bass when listening to music is like a mini massage. It's a hit in our house!”
“It feels as though you're sitting in a car with the subwoofer on. Great feel, and muscles feel relaxed too.”
“Everything about the Woojer Mat exudes quality and comfort. The material is comfortable to the touch.”
“I love how it feels while listening to music. It's like a wonderful massage.”
“I would have happily lain there for an hour going through the different programmes.”
“A truly immersive experience, letting you feel the sound, not just hear it. Comfortable, well-built, and easy to set up.”
The evidence
Independent researchers study vibroacoustic sessions, muscle tension and everyday comfort. Here is what they measured.
Practitioner case series · 2024 · Woojer
Obstetrics & Gynecology: Open Access · Dr. Giovanni Peduto, Metodo Frequency
Woojer in the protocol Dr. Giovanni Peduto, Italian kinesiologist and founder of Metodo Frequency, followed about 100 women who wore a Woojer Strap or Vest on the lower abdomen for five 20-minute sessions at a single frequency.
What was measured Self-rated discomfort before and after the series.
What was reported Most reported less discomfort on the hard days of their cycle. A practitioner case series, not a controlled trial.

Broader field · scoping review · 2022
BMJ Open
What was studied A scoping review of 20 vibroacoustic studies in adults living with ongoing discomfort.
What was reported Most used 40 Hz for 20 to 45 minutes, a band Woojer reproduces. The authors call for larger trials.

Broader field · meta-analysis · 2025
Journal of Sport and Health Science
What was studied 65 studies, more than 1,100 participants, on what added low-frequency stimulation does to flexibility and passive muscle stiffness.
What was reported Lower passive stiffness and more range of motion than rest, with moderate certainty. Muscles feel looser right after, and the instruments agree.
Independent research, cited in full on our Science page.
Good questions
Everything people ask before they buy.
The question most people arrive with. Woojer eases muscle tension and soothes tired muscles, and it gives a braced lower back a reason to let go; how much, and how fast, is individual, and most people feel the shoulders and lower back soften within one session. For pain itself, see a clinician first. Woojer is for the everyday tension in between.
Tension is where most people notice the change first. Lying on the MAT, the upper zones sit under your shoulders and upper back. The Vest wraps the shoulders for the desk and the sofa, and the Strap gives you a two-minute reset at your desk when the jaw starts clenching.
No. Woojer works with anything that makes sound, and it works with pure frequencies alone. A tone generator, or the Frequency producer program in Woojer Wellness Premium, sends a single frequency, say 40 Hz, to your shoulders or lower back with nothing to listen to. Music makes it immersive. Pure frequencies make it precise. Headphones keep the room silent either way.
Yes. Fifteen minutes on the MAT after the drive is exactly the use. Not while driving: use the Strap at rest stops or on arrival, never at the wheel.
The sensation travels through your body, not the room. With headphones the room is silent; without them, people nearby hear at most a soft low hum.
Ask your doctor or physical therapist first, then start at low intensity and find your level. Woojer is gentle and adjustable, and it is not for injuries.
Comfort on the hard days, yes. Lie on the MAT, or wear the Strap flat on the lower abdomen or waist, and let a slow session or a single low frequency do its work. Many women pair it with warmth. Dr. Giovanni Peduto runs five 20-minute sessions at one frequency on the lower abdomen with a Woojer Strap; his case series is in the Science section. For anything beyond everyday discomfort, talk to your doctor.
Talk to your doctor before using Woojer while pregnant, and follow their advice.
No heat, no kneading, no motor pounding one spot. Woojer turns the low end of sound into slow, whole-body sensation you feel through your shoulders, hips and legs, or across your chest. Use it alongside heat if you like; it does something different.
No. Those run small motors at a fixed buzz. Woojer's OSCI oscillators reproduce the actual low end of the music, 1 to 250 Hz, so the sensation moves with the sound: slow, rolling, musical. It is the physical side of a concert, not a buzz.
Yes. It sits flat under a shirt, weighs about 240 grams (8.5 oz), and is silent to the people around you. A Stress reset between meetings takes two minutes.
Fifteen to twenty minutes on the MAT with your legs over the lower zones. Longer is fine: if you fall asleep, the MAT switches itself off.
It is gentle and adjustable. Start low, find your level, and stop if anything feels wrong. Woojer soothes tired muscles; it does not press, knead or dig.
It is music you feel. Low frequencies you normally only hear become physical sensation through your body, and researchers measure the response with heart rate variability, muscle stiffness and range of motion. The studies are above, and in full on our Science page.
No. It is the everyday maintenance in between: fifteen minutes, lying down, as often as you like. Keep your physical therapist and your massage therapist; give them a looser body to work with.
The MAT for the full-body lie-down, shoulders to legs. The Vest for the shoulders and upper back at the desk or on the sofa. The Strap for the waist on cycle days and for the two-minute desk reset.
The free Woojer Wellness app has Woojer-tuned sessions for relaxation, recovery, sleep and more, and controls intensity. You can also play any audio you love: if it makes sound, Woojer makes you feel it.
Yes. Any audio in, physical sound out.
Yes. Comfort is maintenance. Many people settle into a daily fifteen minutes, after work or before bed.
No. Woojer is a wellness device. It is not intended to diagnose, treat, cure or prevent any disease or medical condition, and it is not a substitute for medical advice, physical therapy or massage therapy.
Do not use Woojer if you have a pacemaker or any implanted electronic or mechanical device. Consult your doctor before use if you are pregnant, have a heart condition, a recent injury or surgery, or take heart or blood pressure medication.
Yes. Intensity is yours, mid-session, in the app or on the device. Start low on sore days.
From the warehouse closest to you: United States, United Kingdom (London) or the European Union (Netherlands). In-stock items ship within 2 business days. Free shipping in the US, Canada and the EU.
A 12-month limited warranty against defects in materials and workmanship, on every Woojer.
Yes, for qualified US customers, through our partner Truemed. Select Truemed at checkout and pay with your HSA or FSA card.
Try it at home for 30 days. Not for you? Send it back for a refund, following the return policy.
Try it at home
Use it at home for 30 days. Not for you? Send it back.
30-day money-back guarantee · 12-month warranty · Free shipping in the US, Canada and the EU · HSA/FSA eligible²
More ways to feel better
Woojer has a session for the moment.
Woojer is a wellness device, not a medical device. It is not intended to diagnose, treat, cure or prevent any disease or medical condition, does not treat pain, and is not a substitute for medical advice, physical therapy or massage therapy. The reviews on this page are personal experiences shared by Woojer customers; reviews from other platforms are quoted with their source. The studies cited are independent research and describe what was measured in those studies. Results vary.
Sources for the numbers on this page: Yang et al., Trends in sedentary behavior among the US population, JAMA, 2019: adults sit about 6.5 hours a day. Twelve-month prevalence of neck pain among office workers, 45.5%: 2023 systematic review (PMC10744820). Survey of 200 US women, 2023: 84% reported moderate to severe menstrual pain (PMC10317510).
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