InTENSity IF Combo Digital TENS and Interferential Unit

I'm am using this unit post op ACL revision surgery. I can not believe the pain relief this unit gives. Great design and very user friendly

I have used this unit once or twice a day for 2 years, and after decades of low back pain, I can finally function. It is worth it to buy rechargeable 9 volt batteries, so you aren't tied up to an electrical plug.

After 2 times, my back is feeling better.

For this price, I really wasn't expecting a lot. A little relief from painful spasms; that's it. What a pleasant surprise this product is. It arrives packed in a neat little black suitcase with everything you need to do what they do at the physical therapy place for TENS treatment, minus the ridiculous, um, charge (couldn't resist/ok didn't try). Really feel like I am at a clinic. But I'm home, getting needed relief on my schedule in my fluffy slippers without traveling, finding parking or discussing the weather endlessly. Instructions are um, adequate; 4 super-sticky electrode pads stay where you put them, and muscles are properly stimulated for example, I use it on my shoulders and it is only set at 4 (on a dial that goes to 10.) That is *aplenty*! Impressive machine glad I got it. As to the cons: As noted by others, the instructions might have been more detailed/less scientific, but if anything isn't clear, just read, Google, learn and tweak settings. It is certainly worth your time to determine the best numbers for your particular issue and preferences in muscle stimulation. Bottom line: Enjoying the pain relief at home. You may too.

The product works well for my back pain but there are many settings which is confusing and the manual is not great. Also, do expect to be able to use it with battery. It only works for a minute before it indicates that the battery is low, despite going through several brand new batteries.