on purchases of $34.99 or more and
Free Standard Shipping on purchases of $34.99 or more applies in the U.S. only. Free Returns in the U.S. and Canada. Large, oversized items and products delivered by special or white glove carriers are not eligible for free shipping or free returns. Free returns are not applicable to final sale/non-returnable items. As always, check the deal's Fine Print for restrictions.
I just got it last night and tried it immediately. It was easy to operate and even though its battery operated the level 6 was definitely powerful enough that it felt much higher. The instructions were easy to understand and the fact that they included the batteries and an extra set of pads was a bonus. I recommend it.
I just received my TENS Unit yesterday. Last night I used it for the first time. It felt so wonderful, I didn't want to take it off my back! It really helped me. I wish I had purchased it long before now.