Comfytemp TENS Unit Muscle Stimulator for Pain Relief Therapy, FSA HSA Eligible TENS Machine with 24 Modes and DIY, Dual Channel EMS Unit, Pulse Muscle Massager for Back, Shoulder, Sciatica, Knee

I originally bought it to simulate period cramps on my boyfriend, which worked by the way lol. In a turn of events, I tried it on my back for back pain and it worked wonders! Definitely will resomend this for period cramp simulation lol and pain.

Good product at a great price.

Product is working as described. I had a hard time comprehending the instructions, maybe because I've never had a tens unit before? Once I figure it out, it's been working great. The adhesive pads stay sticky, even after multiple uses. The product is durable and the batteries last quite a while. Powerful little machine

Hace su trabajo excelente

Works very well and is easy to use and is portable

It helps

I am not at all happy with this device. It came with no tape or larger pads (they were all the same size), and it rarely and barely works. It seems stuck on one program (2 if we count TENS and EMS together), and the stimulation (even at higest setting) is negligible. I have had other TENS units and that is why I purchased this one. I'm so disappointed, I don't even want to try to return it, although Amazon has always been really accommodating at returns. It probably works well in some cases, but I think individual units are iffy.

So awesome, I just assumed for the price it wouldn't be worth having but my friend recommended me to get it, she loved hers!! OMG was she right first day having it , I totally recommended!! It's a must have