RENPHO Active Thermacool 2 Massage Gun with Heat and Cold, [2026 Upgraded] Handheld Percussion Deep Tissue Neck Back Muscle Massager, FSA Approved Gifts for Men Him Athletes Women Her HSA
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Availability:
In Stock.
Arrives
Tuesday, Aug 4
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Color: Classic Black
Features
- Recommended by IMA: Professional-grade massage solution officially endorsed by the International Massage Association
- Expert-Recommended by Dr. Daniel Altman: "I love how the Active Thermacool 2 Massage Gun is designed...Applying heat may further support muscle relaxation, while the cooling option can feel refreshing on areas where patients are experiencing tension
- Command Your Recovery: With its integrated VA display, the RENPHO Percussion Massage Gun allows you to clearly monitor speed, battery, and temperature settings, and effortlessly switch between heat and cold therapy without interrupting your massage
- Dual-Temperature Relief: This massage gun with heat and cold offers 8 settings to heat muscles up to 113F (45C) for soothing relaxation or cool them down to 46F (8C) to refresh tired muscles, accelerating your recovery for more effective results
- Deep-Tissue Massage: Crafted with a premium exterior and a robust brushless motor, this powerful handheld massager delivers intense 3200 RPM percussions with an 10mm amplitude to help melt away tension after hiking, climbing and other outdoor adventures
- Long-Lasting Battery: Powered by high-capacity 2500mAh batteries, this cordless massager gun delivers extended relief. Enjoy powerful muscle relaxation anywhere on a single charge. A built-in 10-minute auto-off protection ensures safe use
- Peaceful & Effortless: The deep tissue massage gun features a brushless motor that works harder, longer, and quieterat just 40 dB. Relax better and recover faster with the ergonomic design to reduce stress on your wrists and hands
- Wellness Upgrade: This portable muscle massager is the go-to tool for modern recovery. With powerful performance and a Thermacool head, its more than a massagerits an everyday essential for athletes, busy professionals, and wellness enthusiasts
- Ideal Gift: Perfect for Birthdays, Holidays, Anniversaries and Valentine's Day. This Thermacool massage gun is designed for anyone experiencing muscle stiffness, post-workout soreness, or daily tension
Product Dimensions : 6.69 x 7.36 x 2.17 inches; 1.47 Pounds
Item model number : R-WMG13-BK
Batteries : 1 Lithium Ion batteries required. (included)
Date First Available : September 15, 2025
Manufacturer : RENPHO
Best Sellers Rank: #3,916 in Health & Household (See Top 100 in Health & Household) #7 in Handheld Massagers
#7 in Handheld Massagers:
Customer Reviews: 4.6 4.6 out of 5 stars (30,375)
Target Use Body Part: Arm, Back, Body, Neck, Shoulder
Power Source: Battery Powered
Other Special Features of the Product: Auto Shut-Off, Cordless, Portable, Rechargeable, Speed Control
Massager Form: Massage Gun
Specific Uses For Product: General muscle pain and tension relief, specific body parts (arm, back, shoulder, neck), and various muscle-related conditions
Product Benefits: Muscle Therapy
Is Product Cordless: Yes
Product Grade: Professional
Massage Therapy Technique: Percussion
Charging Time: 2.5 Hours
Battery Average Life: 10 minutes
Brand Name: RENPHO
Model Name: Active Thermacool 2
Model Number: R-WMG13-BK
UPC: 840191400926
Manufacturer: RENPHO
Manufacturer Part Number: 0
Unit Count: 1 Count
Item Weight: 1.5 Pounds
Item Dimensions L x W x H: 7.3"L x 4.7"W x 2.3"H
Color: Classic Black
Style Name: Active (Thermacool 2)
Form Factor: Handheld (Gun-like)
Material Type: Acrylonitrile Butadiene Styrene, Silicone
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Aug 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: Midnight Black
Wow! I am impressed! The massager technology has gotten really good! I did not expect this quality in a $70 massager. When massaging, the massager imparts very little vibration to the hand holding the massager while, at the same time, it is a powerful massager on the business end. Control: Amplitude - there are 5 settings for the amplitude where the amplitude control how far out the massaging hammer (yes, this is essentially a hammer) thrusts out during each cycle. The range of distance the hammer thrusts out each cycle is enough to cover most needs. In fact, for me, I only use the highest setting and control the depth of the massage through how hard I press the massager into the surface of the area being massaged. Be careful that you don't press too hard. You can hurt someone if you press too hard. It is that powerful. Frequency - There are also 5 setting of speed of vibration. It is advertised that the frequency range is 1,800 to 3,000 cycles per minute. This range of frequencies gives you a lot of control over the vibration effects that one might want. However, I spent all of the time on the low end of the frequency. In fact, if there was two more slower frequency settings on the lower end, I would welcome that. Having said that 1,800 hz does a pretty good job of transmitting pulses deep into muscles. I am just nit picking here. Noise level was pleasantly quiet. I was very surprised at how quiet and powerful the massager was. This contributed to the sense that the build quality is very very good. This is a solid piece of engineering. The web site claims that a single charge can last for 4-5 hours of continuous operation. I doubt that the charge would last that long. Granted that I used highest setting of amplitude and lowest setting of frequency, however, mine did not last nearly that long. The charge went from 80% (out of the box) to something like 40% in 25 minutes of running it hard. I haven't tried it after a full charge to see how long a full charge would last. In most situations, I expect sessions to last about 15 to 20 minutes. Any longer than that, I think muscles would turn into ground beef. It is that powerful. Also, I don't know how appropriate this is for back massages around the spine. This can be really powerful and one needs to be a little careful with it. This definitely is not a toy. I think this would be most effective against large muscle groups rather than areas where there are lots of boney structures. The vibrations are vigorous enough to be transmitted to significant depth in the muscle groups like thighs, hamstrings, gluts, deltoids, and etc. where there are large muscle masses. I haven't had it long enough to know how long this will last. However, based on how solid it feels, I would expect this to be a very reliable tool that will last a long time. I will try to update this review in about a year.
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Reviewed in the United States on January 9, 2026 by Frank Chi
Color: Classic Black
This massage gun is absolutely the best I have owned. I was skeptical about the gun getting cold enough to help with my sciatica pain but I really works great! The different heads give you plenty of options for targeting pain. The gun itself is well made, and has a nice weight and feel. Battery life is significantly less while using the heat/cold option but I feel that should be expected as more power is being used, but lasts long enough to get the job done. Overall I would definitely recommend.
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Reviewed in the United States on April 12, 2026 by Jason P
Color: Classic Black
I've only had it for about 24 hours, but so far it's been fantastic for keeping sciatica cramps under control. I can't see myself using the heat/cold feature much since I need the foam ball tip for getting into the muscles, but it might come in handy someday. Battery charges fairly quick and holds a charge longer than I expected under use. So far would recommend to anyone shopping for a massage gun.
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Reviewed in the United States on May 27, 2026 by Thor Nielssen
First I have to say that I purchased this in December of 2022 so that's been some time ago and I've used it all the time, mostly. So about 8 months ago I thought I had broken it, it was shaking really bad and there was rattling noise so I turned it off and didn't use it since then. Today I took it apart and realized that 2 of the three screws that hold the motor to the anti vibration internal frame had vibrated lose, I screwed those back in and it's back to normal. The motor is powerful and can dig deep, battery is amazing (8 months on standby and it only lost 1 bar). Internally it's well built with quality sealed bearings and solid aluminum counterbalance hardware. The electric board for the power on button is a plug-in type so it's not soldered in, making repairs easier. I can't speak to the next generation but my guess is they have done some modifying for cost savings. Btw this was recommended by a chiropractor in my area as she used this model in clients. Would by again if it was available
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Reviewed in the United States on May 27, 2026 Reviewed in the United States on May 27, 2026 by Amazon Customer
Color: Shadow Black
It is a little vibraty? Is that a word? But it actually does work pretty well. It might be me needing to apply proper pressure. The flat round head with heat and cold is actually nice. Has its own charge port type C. The unit, I've charged once so far and I use it about three to four times a day and over a span of a few days now it is helping to alleviate piriformis issues from cutting and splitting firewood all that bending and lifting, stretching etc. Has a nice array of attachments. I like that it's about the size of a small hair dryer, not heavy. Great on the neck. I like it so far.
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Reviewed in the United States on February 5, 2026 by Kevin
Color: Classic Black
I’m very happy with this product. I was skeptical about the ability of the heating and cooling head to actually deliver heating or cooling but it does, and effectively. The stroke length is a bit short so it’s more of a vibratory device but it’s lightweight and easy to operate and it has very quickly alleviated aches and pains I’ve had for a while, some of which would respond to massage but only for short periods.
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Reviewed in the United States on June 1, 2026 by John R.
Color: Classic Black
This massage gun is absolutely amazing! Comes with different types of massager types. There is only one that has the heat and cold massager. It heats up fast and has 4 levels of heat and cold. The massager has different levels of pulse action. For someone who has fibromyalgia and bulging disks., this item is a must. I absolutely love it. I prefer the heat. It helps massage the problem areas. Charges fast enough. Great item!
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Reviewed in the United States on May 30, 2026 by Amazon Customer
***Just got the RENPHO Heated Handheld Massager (December 2020) so I am updating my review of the RENPHO Massage Gun (from June 2020). I will indicate where updated.*** I have been working out my entire life and never really bought into the whole idea of foam rollers and post-workout massage and all that nonsense. To me, you worked out, you stumbled home on sore legs and the soreness was an indication of how effective your workout was. However, now that I am in my 40s, soreness tends to linger a little longer and gains are a little harder. Not fun. Someone at my gym a few years back was telling me about the wonders of "massage guns" and it sounded too good to be true (less soreness, faster recovery, faster gains in the gym). Anyway, I tried one in a store back then and was not impressed. It just felt like a powerful massage that, for the $600+ price, was not worth it. As time passed, I read a lot about the great physiological benefits but never invested in one because they still cost hundreds of dollars. Fast forward a few years, trickle-down economics has kicked in and this year I happened to be looking at massage guns again and the prices were very enticing. There seemed to be a lot of good options for about $200 (less than half the price of what good ones used to be) and this particular RENPHO unit for less than $200. I heard about RENPHO a few years back when I was looking for one of those scales that measures weight, BMI, bone mass, etc. and all the reviews I read online pointed to them as the best value. As a shopper I am all about value. I am willing to forego one or two bells and whistles if the reviews are solid and the price is considerably less. Anyway, I bought that scale and it was (and still is) awesome and ever since then if I see RENPHO is selling something I am looking for, I get it. I have never been let down by the company and this massage gun is no different. First, you should know that this is not the type of thing you are going to use for a relaxing backrub. This can HURT. But not in a "stop, stop, stop" kind of way, more like a "wow, it's really effective" kind of way. Massage guns are for breaking up scar tissue, releasing lymphatic fluid back into your bloodstream, increasing bloodflow to the muscle and interrupting the pain cycle in the brain. At most you will use them for 2 minutes per muscle group, not 15-30 minutes like you might with a "relaxing" massager. (UPDATE: I just bought one of their heated massagers which is a better alternative for a light, relaxing, unknotting of your muscles. I will upload a pic and describe it at the end in case that's what you are looking for.) OK, second thing you should know is that this massager *really* is for people who are personal trainers and physical therapists to use on others. It even comes with a handy little carrying case (pictured) so that you can take it from appointment-to-appointment. The reason I say it's not for "solo" use is because even though you can probably target your own chest, quads and calves, you would have to be Stretch Armstrong or Plastic Man or Mr. Fantastic (these are all people with really stretchy arms) to be able to use it on your own upper back, lower back, triceps, glutes, rear delts and hams. So keep in mind you will need a husband, wife, significant other or a really good friend who is willing to help you with your DOMS for a few minutes a week. Tell them you only need them for a minute or two per muscle group and they might help you out. Other wise, bribe them by offering to use it on them. Anyway, it's a tool you need but you also need someone else to do it for you (unless you are doing muscle groups on the front of your body. (UPDATE AGAIN: Something like the RENPHO handheld massager that I just got is PERFECT for reaching your own back, butt, neck, etc. but please understand that a personal massager is not going to do the same type of thing that a massage gun does) So, with all that said, how does it work? Lots of videos out there online but make sure to know your gun tips: Flat head is for pretty much any body part, bullet is for severe areas as well as trigger points and the thick soles of the feet, the bullet is also PERFECT for getting inbetween muscles such as running it down the side of you leg where the quads and hams meet, keep in mind if you use the bullet attachment--or any to be honest--and you hit bone, it might hurt so start with a low speed and be careful, the round head is for large muscle groups and the ridge head for going up and down the spine and getting the muscles around it without hitting the actual spine. I haven't used the air cushion head but it is supposed to be for sensitive muscles. Supposedly different speeds are for different therapeutic effects but I just go with what is tolerable. What else? As with all things that have a rechargeable battery, make sure to charge fully before your first use. All subsequent uses will be limited by how much charge you gave it the first time so don't be tempted to charge it for 15 minutes, then try it. Your future standby and use-time will be limited. It's really sturdy, and heavy and STRONG. The case (not that it matters to me) is handsome-looking but more importantly, a way to keep all your stuff together. So...final conclusion? If you workout or have chronic pain issues like sciatica, YOU NEED THIS. These things used to cost $600 and now you can get this awesome little portable, cordless, rechargeable, handheld massage gun for less than $200. You'll probably need a friend or loved one for your back areas but use it on them as "payback" and they won't complain. It is NOT a relaxing back massager that you're going to use for long, relaxing massage sessions but it IS an important and surprisingly effective tool for chronic pain as well as post-workout recovery. ***UPDATE DEC 2020*** Okay, so as much as I love this, I was looking for something this week for general muscle relaxation. Post-workout recovery is one thing but sometimes you get home and you have a sore neck from watching your co-workers do nothing or your back hurts from carrying the company on your back. These types of aches require something that can give you a soothing massage, not something that is like a pocket jackhammer. I picked up a RENPHO Back Massager with heat. I'm not gonna' write a review here but I will say that if you are looking at this massage gun and considering it as an option for your day-to-day pains, that might be a better option. It's great to come home and be able to use it to reach your own back and it's got heat so it's better at relieving tension. Find my review here on Amazon if you want more info. But for massage that is related to sports, workouts and chronic pain needs, I can still say six months later that I whip out the RENPHO Massage Gun at least 3x a week. It's a totally different feeling. Like I said in my original review it is *almost* painful if used right but what it does is apply pressure to a sore area, intensifies the pain for a minute and then, makes it go away. Magic. I am really sold on massage guns and I am definitely sold on this particular one. It's got all the power you need, all the heads, a lot of charge time, it is solid and it works.
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Reviewed in the United States on December 21, 2020 Reviewed in the United States on December 21, 2020 by Big Al