06-03-2014, 03:22 AM
Elis is correct. The tens units are used for muscle pain. I just got a simple one at Walgreen's. Two pads, one on each breast. It only has 3 patterns, and 1-5 strength. I go straight to 5 and love the girls bouncing on their one and the nipple tingle...I get about an hour in 3-4 times a week.