Beurer – TENS Back Belt – Gray/Black

Doesn’t work, at all. There must have been an error during design or at the factory when it was assembled. The “electrodes” have enough conductivity to know whether they’re touching skin, but can’t pass enough current to contract any muscles. The controller goes on if you have skin touching all four electrodes and refuses to start if not, but there isn’t enough current flowing to feel anything when allowed to increase the intensity. I even tried my tongue. Too bad I waited until past the return period. Completely worthless.