GYM IN A BOX® 3-in-1 Heated Wellness Massager with red LED lights on a white background
3-in-1 Heated Wellness Massager — video: the heated wrap on a knee with its digital controller, soothing heat and massage for shoulder, knee and elbow, for women & men.
GYM IN A BOX 3-in-1 Heated Wellness Massager collage showing the wrap worn on a woman's knee, elbow, and shoulder, with 3-IN-1 Massager suitable for knees, elbows and shoulders text
Person wearing GYM IN A BOX® 3-in-1 heated massager brace on shoulder with digital display showing 50
GYM IN A BOX® 3-in-1 Heated Wellness Massager triple use graphic showing shoulder, knee and elbow wear
Woman lying on a couch wearing the GYM IN A BOX 3-in-1 Heated Wellness Massager on her knee, with 15 mins Auto-off Enjoy a good sleep text
GYM IN A BOX 3-in-1 Heated Wellness Massager size guide graphic showing wrap dimensions, long extension strap, included cold and hot compress pocket, and Velcro adjustment close-ups
GYM IN A BOX 3-in-1 Heated Wellness Massager black neoprene wrap with round control unit, shown with red and white retail box, USB charging cable, strap, and instruction sheet
Man sitting on a couch wearing a GYM IN A BOX black shoulder, elbow, knee massager brace in a bright living room.
Person walking outdoors wearing a GYM IN A BOX heated knee massager brace with LED lights on a park path.
Black GYM IN A BOX heated knee massage device on a person's leg with text detailing features and benefits.
Woman wearing GYM IN A BOX® 3-in-1 Heated Wellness Massager brace on her shoulder
Heated garment with temperature display and health benefits on a beige background
GYM IN A BOX® 3-in-1 heated knee massager benefits infographic showing four use cases for knee and shoulder discomfort
Yellow box of a GYM IN A BOX 3-in-1 massager with Cuomo News Nation branding on a light gray background
Black heated GYM IN A BOX massager set with USB cable, user manual, and additional black pad on a white background.
Man wearing GYM IN A BOX® 3-in-1 heated shoulder massager with digital display in a health magazine style shoulder pain graphic
Person wearing GYM IN A BOX® 3-in-1 heated massager brace on knee with digital display showing 50
GYM IN A BOX® 3-in-1 heated massager 'Relax Your Body' infographic showing four use cases for muscle stiffness, joint swelling, elbows and injury recovery
Woman wearing GYM IN A BOX® 3-in-1 heated shoulder massager in a Health Insights Magazine shoulder pain advertorial graphic
Close-up of GYM IN A BOX® 3-in-1 heated massager brace wrapped around a knee with 360-degree wrap and non-slip fabric callouts
GYM IN A BOX® 3-in-1 Heated Wellness Massager product video
GYM IN A BOX® 3-in-1 heated knee massager brace with digital display showing heat waves and shoulder wear inset
Woman wearing GYM IN A BOX® 3-in-1 wireless rechargeable knee massager in laundry room with feature callouts
GYM IN A BOX® 3-in-1 heated knee massager infographic showing high frequency vibration modes for deep massage
Woman wearing GYM IN A BOX® 3-in-1 heated elbow massager while using laptop, with smart touch control button guide
Close-up of GYM IN A BOX® 3-in-1 heated massager brace fabric with herbaceous mohair lining and heat visualization
Woman reclining on couch with laptop wearing GYM IN A BOX® 3-in-1 heating and vibration knee massager with heat visualization
Woman relaxing on couch wearing GYM IN A BOX® 3-in-1 heated knee massager with multi-purpose use panels for arms, thighs, calves and knees
GYM IN A BOX® 3-in-1 heated knee massager infographic showing 3 heating temperatures and 3 vibration modes
GYM IN A BOX® 3-in-1 heated knee wrap infographic showing heat therapy benefits with before and after knee pain illustrations
GYM IN A BOX® 3-in-1 heating and massaging knee pad infographic showing 3 gear massaging and large area heating
GYM IN A BOX® 3-in-1 knee heating pads infographic for knee pain with six condition callouts
GYM IN A BOX® 3-in-1 heated massager brace product detail showing 3D micro surface, rear side cutout and highly elastic material
GYM IN A BOX® 3-in-1 heated knee brace technical diagram showing dimensions and labeled parts including heating button, battery pocket and fasteners
GYM IN A BOX® 3-in-1 heated massager 'science backed relief' infographic showing compression massage benefits for circulation, recovery, muscles and discomfort
Gym In A Box®

3-in-1 Heated Wellness Massager | Shoulder · Knee · Elbow

Regular price $149.00 Sale price $89.00
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FREE SHIPPING FROM BEVERLY HILLS, CA. Shipping details.

PROFESSIONAL RECOVERY TECHNOLOGY

Recommended & Used by Physical Therapists

Recovery technology like targeted heat, cooling, massage and compression is commonly used in physical therapy and wellness environments. GYM IN A BOX® brings those recovery-focused functions into a convenient wearable format for home and on-the-go use.

GYM IN A BOX® 3-in-1 Heated Wellness Massager — Shoulder · Knee · Elbow Recovery. Targeted wellness support for the areas that work hardest.

This versatile wearable combines heating, cooling, vibration massage and adjustable compression in one compact recovery device designed for everyday comfort, post-workout recovery and active lifestyles.

HEAT. COOL. MASSAGE. RECOVER.

Choose the function that fits your routine. Use warming support to help relax tired muscles, cooling support after activity, or vibration massage when you want an easy hands-free recovery session.

PATENTED TECHNOLOGY • AS SEEN ON TV • SHIPS FROM BEVERLY HILLS • FREE SHIPPING

SHOP NOW, PAY LATER — interest-free installment options available at checkout.

WHY YOU'LL LOVE IT

  • 4-in-1 wellness support: heat + cooling + vibration massage + compression
  • Designed for use on the shoulder, knee or elbow
  • Helps support muscle relaxation, circulation and post-activity recovery
  • Adjustable fit and settings for a personalized session
  • Easy to use at home, after training or while traveling
  • Rechargeable, wearable and designed for modern daily routines
  • For women and men (unisex).

3 TARGET AREAS. 1 SMART WELLNESS DEVICE.

Shoulder: ideal after upper-body training, long workdays or everyday tension.

Knee: targeted wellness support before or after movement, training and active days.

Elbow: compact recovery support for repetitive movement, workouts and daily activity.

DESIGNED FOR REAL LIFE

Wrap it. Adjust it. Choose your setting. Recover. The flexible design makes it easy to build a short wellness session into your day without complicated equipment or a clinic visit.

IDEAL FOR

  • Post-workout recovery
  • Active lifestyles
  • Travel
  • Long workdays
  • Everyday muscle relaxation and comfort

SAFETY

CONSULT YOUR DOCTOR: If you have a medical condition, pacemaker, implanted device, are pregnant, or have any concerns, consult your doctor before use.

GYM IN A BOX® consumer fitness devices are intended for fitness and wellness use and are not intended to diagnose, treat, cure, or prevent any disease or medical condition. Individual experiences and results may vary.

This product is a lifestyle wellness and comfort accessory.

Packaging may vary.

Add to cart — wrap it, adjust it, recover.

PATENTED TECHNOLOGY • CREATED BY CRISTIANI'S BALANCE FITNESS & NUTRITION, LLC

Our proprietary wearable technology is protected by U.S. patents, including U.S. Utility Patent No. 11,925,799 B2 and U.S. Design Patent No. D846,836 S.

GYM IN A BOX® USA | ToneUp15® StimFit Technology

Designed and developed in the USA • Established 2015.

What is GYM IN A BOX®?

GYM IN A BOX® is wearable muscle-activation technology from Beverly Hills, since 2015 — and As Seen On TV. Our belts, apparel and devices run on patented ToneUp15® Pulse Body StimFit Technology: wireless, no gel pads, worn on bare skin. Home, work or travel — no gym required.

How does it work?

Press the button on the wireless controller. Gentle microcurrent pulses make your muscles contract on their own — real muscle work while you go about your day. Modes are preset pulse patterns, intensity levels are strength: start low, increase gradually.

How long is a session?

One toning session is 15 minutes — that's our recommended usage for one session, and it's what ToneUp15® is built around. Your device shuts off automatically when the session ends. Some wearables run longer cycles — the PowerPants and the PowerShirt, for example. You can use your device for up to two sessions a day; just follow the instructions for your specific device.

Do I wear it over clothing?

No — the devices need direct skin contact, so wear yours on bare skin, never over clothing. Once it is in place, your clothes can go over the device.

What does it feel like?

A tingling, pulsing sensation as your muscles contract — the stimulation working, not vibration. Start low; increase gradually, only when the device sits correctly and feels comfortable.

Who should not use it?

For adult use only. Do not use during pregnancy, and do not use with a pacemaker, defibrillator or another implanted electronic device — and never while driving, sleeping or bathing. With any medical condition or concern, consult your physician before use.

GYM IN A BOX® consumer fitness devices are intended for fitness and wellness use and are not intended to diagnose, treat, cure, or prevent any disease or medical condition. Individual experiences and results may vary.

How do I choose my size?

Use the size guide on each product page. SlimCore™ is one size, fits S–XXL. Do not size down for extra compression — the zones must sit correctly against your skin.

How long do I charge it?

About 90 minutes for a full charge before first use, using the supplied accessories. Keep controllers away from water.

Why don't I feel it working?

Check the charge and placement, and make sure the contact areas sit fully against your skin. Many systems have load detection and will not activate otherwise; that is a safety feature, not a defect. Still stuck? Email us a photo or short video of your setup.

How do I clean my wearable?

Remove the controller and electronics first. Hand wash only where your product's care instructions allow, keep electronics away from moisture, and air dry. Never put a controller in water, a washing machine or a dryer.

What are the shipping times?

FREE U.S. shipping. Orders ship from Beverly Hills, California — most deliveries arrive within 5–7 working days, with tracking when your order ships.

Can I pay in installments?

Yes — shop now, pay later, with interest-free installment options at checkout.

What is the return policy?

Eligible regular-price items may be returned within 30 days, unused and in their original packaging. A return authorization is required first, and a $39 return-processing fee applies (restocking, repacking and outbound shipping). Stated plainly: sale, clearance, promotional and discounted purchases — including orders placed with a discount code — are final sale. Once your return is authorized, we will give you the return address and instructions.

How do I contact you?

Email our U.S.-based support team at info@gyminabox.la.

Customer Reviews

Based on 7 reviews
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Edwin Rodriguez
Wellness Massager

I use the shoulder and knee massager after using the 5-1 ESM Massager to help with any swelling. The many vibration combined with the heat setting work great. I would encourage anyone to purchase that unit it work well in combination with the 5-1. Great products

Thank you Edwin, so happy to hear it helps you so much!

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Lynn
This pain relief brace does wonders

I can only recommend this pain relief massager brace to everyone! I an using all gym in a box products because they really work! I did 3 months of physical therapy but nothing helped me as efficiently and as fast as these products with the micro current. I use them for pain relief, rehabilitation and building strength . It’s Magical ! THIS REALLY WORKS AS PROMISED !!

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Customer
Helps with pain

My nice gave me this against shoulder and knee pains and surprisingly, this massager works better than going to physical therapy! And so much cheaper! I’m sold!

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Sam
Pain free in one week!

Man I suffered from shoulder pain after several sports injuries and surgeries and using this heated massager for a week now, I’m telling you this works wonders, first time in 3 years I could sleep completely PAIN FREE! This is crazy, love this GYM IN A BOX brand I also use the gym in a box smart EMS Shirt that basically eliminated my back pains so I’m obsessed with their products! Recommended them to all my friends, they love me for it

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Tim
This saved me a lot of money on physical therapy!!

This heated massager recovery brace really works! No more knee pain nor stiffness after just using this a couple of days for 25 minutes. Unbelievable, what my physical therapist didn’t accomplish for a lot of money, this thing did get the job done, can’t live without it anymore! Thanks GYM in a BOX !

Customer Reviews

Based on 6 reviews Write a review