OMG! Wow what an amazing massager, after several weeks of being unable to bear any body weight on my knee after I accidentally ruptured my meniscus not to mention Siatica nerve pain as well, after weeks of suffering, today upon receiving my caremax lumbar massager after charging and using for the very first time, I am delighted to report that yes this product does indeed do exactly what it claims to do and today finally for the first time in several weeks I was able to walk carefully on my knee and bear weight to a certain degree with very little pain, comfortably, and I am not sure how but I seem to have regained my strength in my lower lumbar & leg area. Wow!!! I am absolutely delighted with this massager…to anyone out there suffering from knee or back pain like me don’t just sit back on the sidelines doing nothing…get yourself a Caremax and see & feel the difference for yourself…it’s truly amazing what a difference this massager has made to my quality of life, and I have only used it twice so far…AMAZING!!!! God Bless you all at Caremax, thankyou so very much, for such wonderful, prompt service.