It is great. While TENS therapy has been ruled out as being an effective treatment for physical therapy, it creates a distraction from pain for a short time and both my wife and I would use it on nagging pains.
There are some problems with this machine and it's instruction manual. The manual specifies that there is a positive and negative cord marked clearly. There isn't. I found out there is no difference between different polarities and they both are interchangeable.
The 43 page Manual has a chart on page 25 showing what program to use and for what part of the body. I wish this could be printed on a separate laminated card, or on the outside back cover of the manual for easy reference. It is difficult to look through the manual while you are in pain to find what program to use.
The device itself has a back-lit display that shows the program type, and with a arrow pointing towards one of 6 "body areas" printed around the frame of the display. The problem is that area is not back-lit or easy to read unless you have a light shining on it. In order to know where to point the arrow, you'll have to turn on the room lights to be able to read the body area.

Reading through the manual, you know there are two sets of 6 programs: P1 through P6, and six different PE programs for different parts of the body. Problem is there isn't much information on when to use the "P1-P6" programs, as opposed to the PE programs. The manual could provide much more detailed information. And for the life of me, I cann't find a setting to use for the upper back and sides under upper arms.

I received this unit for Christmas. I get back aches on occasion and see a chiropractor who uses a tens unit as part of my treatments. It is a perfect kit to have to available in between treatments. I like the ability to use one or two channels to have more stimulation. I have used it a few times since receiving it and am happy with the results it provides. I like the compact size and different programs for different areas. Also to be able to adjust the intensity to match the stimulation that feels best to you. All in all I am very satisfied with this and would recommend it to others.

I love it. I have had back problems for about 2 years. Most pain on upper right side. After many tests including 3 MRI's, xrays, bone density, blood and most anything else you can name, I also tried two different chiropractors with not much relief. They also used TENS. The only thing the doctors could come up with was nerve damage.

I read the reviews on here and the help that this product gave to a lot of people. After using this for several weeks I can honestly say it has helped me and I am very pleased with the results. The product is very easy to use. Once set up you don't have to change anything the next time you use it. It has programs which tell you which setting they suggest to use for what condition however I have found that I like to set it manually and do not follow any set program. I tried the different settings and found using a P setting of 4 and the PE for neck feels the best. As for intensity I started out at 8 however am now up to 17 on lower back and farther up at 14. The stimulation bounces back and forth using 2 of the pads at a time going from one set of 2 to the other set of 2.. I use all 4 pads at a time. I try and do it twice a day, but some days my back feels much better so I skip one session. The remote times how long you are doing it and shuts off in a half hour so your treatment is perfect each time.

This may not work for everybody but for me it sure did. Beats taking pills to cover the pain. I no longer take anything.

I bought this for my husband who is truck driver and after a long shift of sitting and feeling the bumps and vibrations of the road comes home sore. We had tired this unit previously before buying due to his mom having one (she is also a truck driver) and my husband just loved it. We have tired different Tens Units in the past but this one seems to penetrate better than others. It has more settings and able to handle more areas of the body then most. The best thing is the duel channel (2 pads on each channel) and you can place the pads so you can cover a wider or smaller area depending on where your pain is. My Mother-In-Law bought hers at a Meijers and paid way more for it then what you can get it on Amazon for. Again Amazon just makes everything perfect!

I was worried that these over the counter TENS would not be very powerful, boy was I wrong! I love this thing! The multiple settings give you a good variety of different sensations and the best part is it can work on 2 different target areas, or sometimes I share so my boyfriend and I can both get some shoulder pain relief. I wish I would have purchased one sooner! I definitely recommend ordering additional pads with it because you're gonna want to use this thing all the time. Professionally, as a licensed massage therapist for over 12yrs, I am now recommending this to my clients as well.