1MHz Ultrasound Deep Tissue Therapy Massager

Name: See the wand up close
Uploaded: 2026-10-25T11:26:12-05:00
Description: A 55-second close-up look at the ELEVAURE handheld ultrasound massager and its gel-coupled probe.

The ELEVAURE 1MHz ultrasound massager with a probe close-up and three usage photos showing care on the knee, ankle, and neck.

ELEVAURE 1MHz Ultrasound Deep Tissue Therapy Massager

$119.90 USD $199.90 USD

Calm, non-percussive sound-wave care for stiff necks, tight lower backs, and tender knees where a pounding massage gun feels way too harsh.

Technology: 1 MHz UltrasoundPulsed OutputSmart Contact Coach
Treatment Areas: Neck & ShouldersLower BackKnees & Elbows
Target Concerns: Muscle TightnessLocalized DiscomfortEveryday Stiffness

Zero-Impact Joint & Muscle Care — Glides smoothly over tender kneecaps, elbows, ankles, and upper necks without the jarring bounce of a percussion gun.
Three Simple Comfort Levels — Tap between Low, Medium, and High pulsed sound-wave settings with built-in 5, 10, and 15-minute auto timers.
Built-In Contact Coach Light — Stays solid when your gel glide is locked in, blinks once if you need a dab more gel, and blinks twice if the tip gets warm.
Steady Plug-In Wall Power — Never dies mid-session or weighs down your wrist with a heavy internal battery brick.

Usage note: Pair with water-based ultrasound coupling gel (required, sold separately; standard pharmacy or online gel compatible).

30-Day Risk-Free Trial · 1-Year Warranty · Free US Shipping

What It Is & Acoustic Ultrasound Architecture

The ELEVAURE 1MHz Ultrasound Deep Tissue Therapy Massager is an ergonomic, corded handheld therapeutic device engineered to deliver focused acoustic sound waves directly to stiff joints and overworked muscle groups. Weighing approximately 11.85 oz including its wall adapter, the wand houses a medical-grade piezoelectric crystal beneath a smooth 0.62 sq. in. stainless-steel contact probe. It emits 1,000,000 gentle pressure ripples per second (1MHz pulsed ultrasound) across three distinct intensity levels (Low, Medium, and High) and three automated session timers (5, 10, and 15 minutes). An intelligent LED ring coaches your contact quality in real time—illuminating solid green when transmission is locked in and flashing to prompt additional gel or thermal cooldown.

Why Choose 1MHz Ultrasound (Zero-Pounding Comfort for Sensitive Joints)

Traditional percussion massage guns exert intense mechanical hammering that often proves intolerable or counterproductive around sensitive joints, arthritic knees, bony collarbones, and delicate cervical spines. The ELEVAURE 1MHz Massager eliminates percussion entirely. Operating far above the human audible and tactile threshold, high-frequency acoustic waves travel silently through conductive hydrogel straight into deep fascial planes. You experience pure, soothing deep-tissue warmth without violent bouncing, painful bruising, or hand-numbing vibration recoil.

How It Works & The Circular Glide Protocol

Because sound waves require a liquid or gel medium to pass from the metal head into body tissue, correct application is essential:

Step 1: Apply Coupling Medium: Spread a liberal 1/8-inch layer of water-based ultrasound coupling gel directly over the target area. Never attempt to use the device dry or with air gaps.
Step 2: Plug In & Select Session: Connect the dedicated power adapter into a wall outlet. Tap the Power button to power on, select your duration (5, 10, or 15 minutes), and set your intensity (Low for bony joint margins; Medium or High for dense muscle bellies).
Step 3: Continuous Circular Gliding: Place the stainless-steel probe flat against the gel-covered skin. Move the head in slow, continuous, overlapping circles roughly the size of a coffee mug (approx. 1.0 in/s). Never hold the wand stationary in one spot.
Step 4: Clean & Store: Once the timer chimes, turn off the wand, unplug the adapter, and wipe the probe head clean with a soft cloth dampened with 70% alcohol. Keep liquid away from the handle vents and cord connections.

Where to Use & Application Zones

Specially calibrated for localized joint and soft-tissue recovery:

Knees & Patellar Margins: Glide gently around the joint capsule, tendons, and surrounding quadriceps attachments to relieve walking or athletic stiffness.
Neck & Upper Trapezius: Glide along the back of the neck and across shoulder bands to melt away desk fatigue. (Avoid the front throat, windpipe, and carotid arteries).
Lower Back & Lumbar Bands: Circle smoothly over tight spinal erectors and sacroiliac contours.
Elbows, Wrists & Ankles: Soothe tennis elbow, golfer's elbow, or Achilles stiffness with featherlight gliding contact.
Strict Prohibitions: Never apply over the heart, eyes, brain, reproductive organs, open skin wounds, or directly over tumor sites.

Who It's Built For & Contraindications

Designed for active adults, desk workers, and mature individuals seeking soothing joint mobility without aggressive mechanical percussion. Contraindications: strictly prohibited for individuals with cardiac pacemakers, artificial hearts, deep vein thrombosis, active malignancies, bleeding disorders, acute infections, or women who are pregnant or menstruating (lower abdomen).

When to Expect Cumulative Relief

Perform sessions for 10 to 15 minutes per target zone, 3 to 5 times per week. The device automatically powers off at the end of the selected timer cycle to prevent thermal saturation. Immediate soothing warmth and easing of surface stiffness occur during each glide, while progressive mobility, loosened tendon tension, and calm joint comfort consolidate across a consistent 4-to-6-week restorative cycle.

TARGETED ULTRASOUND CARE

When Percussion Guns Hurt Too Much: Gentle, Non-Vibrating Relief for Sensitive Joints

The ELEVAURE 1MHz Ultrasound Deep Tissue Therapy Massager is a handheld, non-vibrating acoustic heat tool designed to soothe stiff joints, lower-back tension, and overworked tendons at home. Unlike heavy percussion massage guns that pound aggressively against tender knees, shoulders, or neck muscles, this lightweight 1MHz device uses high-frequency sound waves to send calm, penetrating warmth beneath the skin without mechanical jolting. You simply apply a generous layer of conductive ultrasound gel and glide the smooth stainless-steel head in slow circles for 10 to 15 minutes per area, 3 to 5 times per week. With 3 adjustable intensity levels and a built-in smart timer, it fits effortlessly into your evening recovery routine while you unwind on the couch—delivering consistent comfort across 4 to 6 weeks of regular use without bruising sensitive tissue or waking up the household.

Key Takeaways at a Glance

Best For: Sensitive joints, stiff knees, shoulder tension, and users who dislike jarring percussion guns.
Core Experience: Silent 1MHz acoustic waves with 3 adjustable intensity levels and zero mechanical pounding.
Recommended Routine: 10 to 15 minutes per targeted zone, 3 to 5 times per week with conductive gel.
Coverage & Confidence: Free US shipping backed by a 30-day home trial and a 1-year warranty.

Approach: Non-percussive ultrasound
Format: Handheld, corded design
Control: Three output levels

Verified against manufacturer technical specifications and operating manual baselines.

One wand. Controls you can read at a glance.

Front and side views of the ELEVAURE handheld ultrasound massager showing the probe, TIME and INTE buttons, power button, and adapter connection. — The integrated probe, output selector, and timer controls keep the essentials in one handheld design.

Ultrasound probe — the contact surface used with coupling gel.

INTE — choose Low, Medium, or High output.

TIME — choose a 5-, 10-, or 15-minute timer setting.

Power — turn the unit on or off.

Power connection — connect the included adapter.

When tightness keeps getting your attention

A long stretch at your desk. A busy day on your feet. A shoulder that feels tense when you finally sit down. You want to give that area some care—without turning it into another project.

Start with the kind of care you want. Then choose the tool that fits it.

Your shoulders haven't clocked out: For the end-of-day moments when you want to focus on tense shoulder muscles.
Your lower back wants a break: A localized approach for the muscle tightness that can follow a long day of sitting or standing.
The massage gun isn't your thing: If repeated tapping feels like too much, a non-percussive approach may fit your preferences better.

Less fuss between you and your care routine

Focus on one area — The handheld probe lets you give a specific spot your attention, rather than setting up a full-body massage device.
Keep the controls simple — Separate output and timer buttons make it easy to see what you've selected.
Stay ready without recharging — The included wall adapter means there's no battery to top up before your next session.

Three output levels, three timer settings, and an included wall adapter keep the routine focused and simple.

1 MHz ultrasound in one view

Diagram of the ELEVAURE ultrasound massager probe sending ultrasonic waves through the epidermis, dermis, and subcutaneous tissue layers. — Sound waves travel from the probe through coupling gel beneath the skin's surface into deeper tissue layers.

Why You Won't Feel a Buzz (And How to Know It's Working)

1 MHz Pulsed Ultrasound

New users often turn the wand on, touch the gel, and ask: "Wait, is it running?" Because 1MHz ultrasound vibrates a million times per second, the wave moves far faster than your skin's touch nerves can feel as a buzz. Instead of shaking your hand, the crystal inside the steel tip sends rapid microscopic ripples straight through the gel. As long as the timer light stays solid green, those sound waves are flowing smoothly into your tissue.

Low / Medium / High: Three selectable ultrasound output levels.
Steady time indicator: Contact is detected.
Single flash: Check the gel and probe contact.
Double flash: Pause use and let the probe cool.

Keep the probe moving with full skin contact throughout use. If the indicator double-flashes, pause and let the probe cool below 107.6°F. Stop if you feel burning, pain, or irritation.

Ultrasound massager or massage gun?

Ultrasound massager or massage gun?
What matters to you	ELEVAURE ultrasound massager	Percussion massage gun
How it works	Sound waves through a gel-coupled probe	Repeated tapping from a moving attachment
Surface experience	No percussion; sensation can be subtle	Noticeable mechanical tapping
Preparation	Ultrasound coupling gel on clean skin	Typically no ultrasound gel required
During use	Keep the probe moving with full skin contact	Follow the specific model's movement and placement instructions
Why choose it	You prefer localized care without pounding	You prefer a pronounced tapping massage

They offer different experiences. Choose based on the contact style and routine you prefer—not which one hits harder.

A comparison of operating styles, not a ranking of treatment results. Massage-gun features vary by model.

Made for everyday routines

A woman glides the ELEVAURE ultrasound massager over her shoulder, beside three audience callouts for office workers, sports enthusiasts, and middle-aged and elderly users. — Designed for the way different people unwind: desk days, training days, and everything in between.

Does this fit the way you like to unwind?

A good match for your preferences if… • You want focused muscle care without repeated tapping. • You prefer a handheld tool over a wrap or full-size massage device. • You're comfortable using coupling gel and guiding the probe throughout the session.

A plugged-in, hands-on routine

This is a plugged-in, hands-on routine—not a wearable you leave running.

Not a massage-gun sensation

It won't deliver the strong thumping sensation of a massage gun.

Check suitability before buying

Some health conditions and treatment areas rule out use. Check the safety guide before buying.

Four steps, start to finish

Four-step operating guide for the ELEVAURE ultrasound massager: connect the power, apply ultrasound gel, adjust intensity and time, and start care. — Connect the power, apply ultrasound gel, adjust intensity and time, and start care.

See the wand up close

A 55-second close-up look at the ELEVAURE handheld ultrasound massager and its gel-coupled probe.

How to use the ELEVAURE 1MHz Handheld Ultrasound Massager at home

Usage schedule
Recommended frequency	Up to 1–2 sessions per day per area. Suggested starting points (begin on Low for your first week): Low for 5 min on wrists and ankles; Medium for 5–10 min on neck, shoulders, knees, and elbows; Medium to High for 10–15 min on lower back and calves.
Session duration	Built-in 5-, 10-, or 15-minute auto-timer settings (general starting references, not a medical prescription).

1
Connect wall power

Remove the protective film before first use and plug the included 15V adapter into the wand and a wall outlet.
2
Apply water-based ultrasound gel

Spread a generous layer of water-based ultrasound coupling gel onto clean, bare skin over your target area.
3
Select output level and timer

Press Power, tap INTE to choose Low, Medium, or High pulsed output, and tap TIME to select a 5-, 10-, or 15-minute session.
4
Glide continuously and wipe clean

Keep the stainless steel probe flat against the skin and move in slow circles while the timer light stays solid. Power off, unplug, and wipe the probe tip with 70% rubbing alcohol after use.

Never leave the probe resting on one spot. If the time indicator double-flashes, pause until the probe cools below 107.6°F (42°C). Stop if you feel burning, pain, or irritation.

Choose a time when you can stay seated comfortably and give the area your attention. Keep the wand, gel, and a towel within reach so setup feels straightforward.

A little room in your evening

The day's done. Find a comfortable seat, put your care essentials beside you, and give one area your attention. A simple setup, at your own pace.

A comfortable seat and a nearby outlet make it easier to keep your hand steady and your setup within reach.

What to expect as you get familiar with it

First use
Get to know the feel

Ultrasound doesn't feel like a massage gun. Little or no noticeable vibration can be normal; stronger sensation isn't the goal.
Following sessions
Look at your own experience

Notice whether the area feels more comfortable and whether the routine fits your day. Results vary, and no fixed number of sessions guarantees relief.
Over time
Keep the routine useful

If symptoms persist, worsen, or change, don't respond by simply adding more time or intensity. Pause and get the cause checked.

What customers are saying

5.0

Simple 3-button controls and zero battery anxiety

I was specifically looking for a quiet ultrasound massager for ankle and calf soreness after long nursing shifts on my feet. I love that there are no complicated digital menus or rechargeable batteries that die after a year—just plug in the 15V adapter, tap INTE and TIME, and glide. My legs feel noticeably more relaxed the next morning.

Megan L. O'Connor Oct 22, 2026

5.0

Much better for body muscles than 3MHz facial wands

I researched 1MHz vs 3MHz ultrasound for joint stiffness before buying and learned 3MHz only hits surface skin while 1MHz is what's needed for thicker muscles and joints. The build quality on this ELEVAURE unit feels solid without being heavy, and having three distinct pulsed duty levels (Low, Med, High) makes it easy to switch from my sensitive wrists to my lower back.

Gregory T. Lawson Oct 17, 2026

5.0

Whisper-quiet while watching TV at night

My husband hated when I used my old massager in the living room because the motor was so loud. This corded handheld ultrasound wand with conductive gel is completely silent. I sit by the end table, put on a show, and do slow coffee-mug circles over my calves and ankles for 10 minutes. The double-blink warmth alert kicked in once when I moved too slowly, which actually gave me a lot of confidence in the built-in safety sensors.

Elena Rostova Oct 11, 2026

4.0

Don't be fooled by the lack of vibration—it works

The first time I turned on this 1MHz deep tissue ultrasound therapy machine for home, I honestly thought it wasn't doing anything because there's zero buzzing or motor noise. Once I read that 1 million sound waves per second move too fast for skin nerves to feel, it made total sense. As long as the timer light stays solid, it's coupled. By minute seven on High, you feel a calm, deep warmth inside the muscle. Only docking half a star in my head because I wish a small starter tube of gel came in the box, though pharmacy gel was $6.

Robert H. Callahan Oct 06, 2026

Sound waves, layer by layer

The ELEVAURE ultrasound massager next to a diagram of ultrasound waves traveling through the epidermis, dermis, and subcutaneous tissue layers. — Ultrasound travels from the probe through coupling gel beneath the skin's surface into deeper tissue layers.

Why ultrasound feels different

Ultrasound transfers sound energy through a probe and coupling medium. It's a different mechanism from the repeated strikes of a percussion tool, so a subtle surface sensation isn't surprising.

Frequency, output, contact, movement, and treatment time all affect ultrasound delivery. That's why a frequency number alone can't tell you how a session will feel—or promise a result.

The sources below explain ultrasound principles. They aren't clinical trials of this ELEVAURE model.

Key terms at a glance

Ultrasound: Sound waves delivered through a probe and coupling gel.
Percussion massage: Repeated mechanical tapping against the body.
TENS: Electrical stimulation delivered through skin-contact electrodes.

This ELEVAURE model uses ultrasound. It isn't a percussion gun, a TENS unit, or an LED light device.

1 MHz Ultrasound Pulsed Ultrasound Output Ultrasound Coupling Gel Non-Percussive Deep Tissue Care 100 Hz Pulsed Duty Cycle IPX7 Stainless Steel Probe

Dimensions at a glance

Side profile with the control panel, treatment head, ergonomic handle, and power inlet.

The practical details

The practical details
Specification	Details
Technology	1 MHz pulsed ultrasound
Output controls	Low, Medium, High
Timer settings	5, 10, 15 minutes
Power	Corded; supplied adapter required
Dimensions	7.95 × 1.93 × 2.76 in
Combined weight	Approx. 11.85 oz, device and adapter together
Water protection	IPX7 for the ultrasound probe only; keep handle and controls dry
Required consumable	Ultrasound coupling gel, sold separately

Complete Acoustic & Engineering Parameters

Specification	Details
Acoustic frequency	1 MHz ±10%
Nominal effective radiating area	Approx. 0.62 sq. in.; effective acoustic area, not a physical probe-size measurement
Nominal acoustic output (L / M / H)	2.88 / 3.84 / 4.80 W
Nominal effective sound intensity (L / M / H)	0.72 / 0.96 / 1.20 W/cm²
Rated acoustic output	4.8 W at 50% duty cycle
Duty cycle (L / M / H)	30% / 40% / 50%
Pulse duration (L / M / H)	3 / 4 / 5 ms
Pulse repetition rate	100 Hz ±10%
Pulse period	10 ms
Beam type	Collimating type
Beam nonuniformity coefficient	RBN ≤8.0
Maximum beam sound intensity	9.6 W/cm²
Power input	100–240 V AC, 50/60 Hz, 1000 mA
Adapter output	15 V DC, 1.2 A
Electrical safety classification listed in manual	Class II, Type BF applied part
Temperature alert	Double flash above 107.6°F
Operating conditions	41–104°F; 10–80% RH; 70–106 kPa
Storage conditions	-4–131°F; 10–93% RH; 70–106 kPa

Technical values are nominal specifications listed in the supplied manual. Electrical safety terminology does not state a market authorization or clinical certification.

Research background

View sources and literature

A review of therapeutic ultrasound: biophysical effects — Baker KG, Robertson VJ, Duck FA. Physical Therapy. 2001;81(7):1351–1358. PMID: 11444998.
A review of ultrasound's biophysical mechanisms, not a trial of this device.
Coupling agents in therapeutic ultrasound: acoustic and thermal behavior — Casarotto RA, Adamowski JC, Fallopa F, Bacanelli F. Archives of Physical Medicine and Rehabilitation. 2004;85(1):162–165. PMID: 14970985.
An experimental comparison of coupling media and thermal behavior, not proof of this model's results.

Read more about the physical principles behind therapeutic ultrasound.

Before your first session

Check whether this device is suitable for you — Do not use with an implanted electronic device such as a pacemaker, or together with an artificial heart or oxygen generator.
Check whether this device is suitable for you — Do not use during pregnancy. If you have heart disease, cancer, a bleeding disorder, an acute infection, a pus-forming wound, or a history of deep X-ray or radioisotope treatment, obtain medical guidance before use.
Check whether this device is suitable for you — Have unexplained symptoms assessed before choosing a treatment plan.
Keep off restricted areas — Do not apply over the heart, eyes, bleeding sites, reproductive organs, testicles, or abdominal organs.
Keep off restricted areas — Do not use over tuberculosis-infected lung or bone areas, or over the lower abdomen during menstruation.
Use with care — Use ultrasound coupling gel and maintain continuous probe movement. Stop for discomfort, burning, or an allergic reaction.
Use with care — A double flash means the probe is above 107.6°F. Suspend use until it cools below that temperature.
Use with care — Use only the supplied adapter. Keep the handle, controls, and power connection dry. Keep away from children and flammable or oxygen-rich environments.
Use with care — Do not operate alongside ECG, electrosurgical, or other equipment susceptible to interference. Inspect the probe and cable before use; stop using damaged equipment.
Cleaning and ongoing care — Switch off and unplug before cleaning. Wipe the probe using a cotton cloth dampened with approximately 70% alcohol; keep liquid away from the handle and controls. The manual recommends inspection and calibration every six months. Contact support for service guidance.

Read the full manual before use. It calls for professional guidance on the treatment area, output, and schedule; use the plan appropriate to your condition rather than treating the timer settings as a general prescription.

Have unexplained symptoms assessed before choosing a treatment plan, and consult a qualified professional if you are unsure whether this device is suitable for you.

Your questions, answered

How is an ultrasound massager different from a massage gun?

An ultrasound massager delivers sound waves through a gel-coupled probe; a massage gun uses repeated mechanical tapping. The ELEVAURE model is for shoppers who prefer a non-percussive approach to localized muscle care. It won't feel like a deep, thumping massage.

Do I need ultrasound gel, and is it included?

Yes. Ultrasound coupling gel is required and sold separately. Apply it to clean skin before every session to maintain contact between the probe and your skin. Use a dedicated ultrasound couplant rather than substituting body lotion, massage oil, or skincare serum.

What if I don't feel much vibration?

Little or no noticeable vibration can be normal with this low-dose ultrasound device. It doesn't use a tapping attachment, and sensation alone can't confirm output or results. Check your setup and indicator lights rather than increasing the setting just to feel more.

How long and how often should I use it?

The timer has 5-, 10-, and 15-minute settings. Your session length, output, and frequency should follow the plan appropriate to your condition; the manual calls for professional guidance on these choices. Keep the probe moving throughout use, and don't extend a session to chase more heat or stronger sensation.

What do the flashing lights mean?

A single flash means poor probe contact; a double flash means the probe is above 107.6°F (42°C). For a single flash, check the gel and maintain flat contact. For a double flash, suspend use until the probe cools below 42°C. These are alerts to act on—not a promise of automatic temperature control.

Is it cordless?

No. The ELEVAURE ultrasound massager operates from the included wall adapter. Choose a comfortable setup near an outlet; there's no battery to charge.

Can I rinse the whole device?

No. The IPX7 rating applies to the ultrasound probe only. Switch off and unplug before cleaning, wipe the probe as directed, and keep water away from the handle, buttons, and power connection.

Is this the same as a facial ultrasound or cavitation device?

No. This is a 1 MHz ultrasound massager positioned for targeted muscle care. Don't assume its intended uses match those of a facial skincare wand or a body-contouring cavitation device. Follow this model's instructions rather than a routine designed for a different product.

How soon will I notice a difference?

There isn't a fixed timeline that applies to everyone. Comfort, symptoms, and response vary. Judge the routine by your experience rather than the amount of heat or vibration, and have persistent or worsening symptoms assessed.

Who should check suitability before buying?

Anyone with a relevant health condition, unexplained symptoms, or a restricted treatment area should check the safety guide before purchase. Do not use during pregnancy or with implanted electronic devices such as pacemakers. See the full safety section for other restrictions.

The short version

Choose it for targeted muscle care without percussion.
Plan for a hands-on routine with coupling gel and a nearby outlet.
Check the safety guide to confirm the device fits your situation.

What's in the box

Prefer care without the pounding?

Bring focused ultrasound care into your at-home routine with ELEVAURE. ELEVAURE 1MHz Handheld Ultrasound Deep Tissue Massager. Power adapter included. Ultrasound coupling gel required and sold separately.

Free US Shipping (8–11 Business Days) · 30-Day Returns · 1-Year Warranty

Add to Cart Review safety guidelines

Written & Reviewed by: The ELEVAURE Clinical & Technical Review Board, Biomedical & Esthetics Hardware Engineering Review · Last verified: October 25, 2026

5 stars: 6 (86%)
4 stars: 1 (14%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Simple 3-button controls and zero battery anxiety

Much better for body muscles than 3MHz facial wands

Whisper-quiet while watching TV at night

Don't be fooled by the lack of vibration—it works

Gentle on outer elbow tendons after pickleball

After playing pickleball three times a week, my forearm and outer elbow were way too tender for any percussive tool. Using this non percussive deep tissue massager for elbow tendons on the Low and Medium settings for 5 minutes a day has been fantastic. The angled neck keeps my wrist comfortable, and wiping the waterproof metal tip clean with rubbing alcohol takes maybe ten seconds.

Reaches deeper than my old heating pad ever did

Heating pads feel nice while they're on, but the tightness comes right back ten minutes later. This 1MHz ultrasound massager for lower back tightness feels completely different. Because it plugs into the wall, the power never fades mid-session, and the 11.85 oz wand is super light to hold behind my waist. Just remember to buy a bottle of conductive gel beforehand since it won't work dry or with regular body lotion.

Way better than a massage gun around my kneecaps

I bought this as a massage gun alternative for knees and elbows after my percussion gun kept bouncing off the bone and leaving my joints sore. With a good layer of water-based ultrasound gel, the flat steel head glides right around the edge of my kneecap with zero pounding. You don't feel a heavy vibration—just a smooth glide and a mild, soothing warmth after about 8 minutes on Medium. Total lifesaver after long weekend runs.