@AddyM I just purchased their newest wireless version so I can walk around the house while it’s doing its thing. How often did you use it for muscle strengthening?
@Luna My discovery was a pure accident so I'm not sure about the different versions but if you are going to buy it make sure it has EMS. Mine has 6 different EMS programs: exercise prep, muscle recovery, 2 active recovery settings, build endurance and muscle strengthening. I've only used the muscle strengthening program.