Review on FDA Cleared FlexHeat TENS EMS Unit With Infrared Heat And Foot Massage - Muscle Stimulator Machine For Pain Relief Therapy, Back Pain, Nerve & Bone Inflammation, Arthritis & Labor by James Duffield

The FlexTone FlexHeat is a great TENS. I use it on my sciatica. The heat with the TENS and EMS does the trick every time. The reason for the 3 stars is because FlexTone only has the 1 sized pad and the 2 that comes with it are the only 2 FlexTone pads available on the market. There is another company that has a compatible pad the exact size that comes with the FlexHeat. However there are no other compatible sizes available on the market. Why is that you ask? FlexTone uses a unconventional 4-pin connector. The numerous, varying sized pads that are available on the market are 2-pin and will not fit the FlexHeat. Nor can I find anything that converts the 4-pin to the universal 2-pin configuration. They get 3 stars because the FlexTone FlexHeat is not Flexible.