Now the power intensity is on the one button and works much better. The pads are now lasting longer
Apparently in the past months the tens unit itself has been improved and now these pads are wearing longer. The unit used to have a center area to push for power and it stopped working on three units I had to replace. Now the power intensity is on the one button and works much better. The pads are now lasting longer.  I have had three different brands units and this one does my back better than any of the other units.
Rating: 5 stars