Roscoe Medical TENS Unit and EMS Muscle Stimulator, Twin Stim, OTC TENS Machine for Lower Back Pain Relief, Neck Pain, or Sciatica Relief, Clinical Strength Stim Machine

It's a very simple to use device and provides mild relief from muscle aches or pains. The power is quite strong and it goes up to 10 but I've never gone above 5 or 6 without feeling like my bones are rattling. It definitely "shocks" your muscles but it can feel uncomfortable at 1st. Definitely start LOW and work your way up. The pads stay on and can be reused a few times before the stickiness is gone. But sometimes an edge will peel up and you will get shocked if you touch the inside by accident. But it still works for my needs, it provides relief for my back pain and sore legs. But I don't know if there's any potentially bad side effects and I only use it when I'm in dire pain now.

Very soothing and effective. Highly recommend it :)

well worth it. Have bought a second one as well

The stimulator machine is very light and handy. Also, easy to use and does what it was meant to do,

My son loves it he said it helps with his muscle pain after doing his summer workouts for football

Worked great for surgery recovery

I've been in physical therapy the last few months for carpal tunnel syndrome, and my physical therapist taught me how to use a TENS unit. They let me take pictures of the ones they had at the clinic so that I could go find the same kind or at least something similar, and this was the closest I could find. I appreciate the analog controls. It does seem to go through batteries pretty quickly with daily use, so it's probably worth also investing in rechargeable 9 volts if you foresee yourself using it more than a few times a week. When its timer runs out, it chirps at you until you turn it off, which is super helpful so you don't accidentally eat through your battery.Great little unit so far! I really hope it holds up all right!

About 8 years ago, I was prescribed an EMSI TENS unit. I was sent a second, upgraded unit about 5 years ago. I received EMSI electrodes monthly, so I wound up with a stockpile (6 dozen) of electrodes. About 4 months ago, both units stopped working.With the nerve damage and pain after a foot surgery, I wanted to keep using a TENS unit to slow down the nerve damage, so I tried to buy a new EMSI unit and apparently that requires a doctor's prescription since the EMSI site doesn't have a shopping option.I found a used EMSI unit on eBay for $45, but I wasn't excited about that option. I started trying to find a unit on Amazon that I thought I could use with all those electrode patches and I FOUND IT with this unit. For the cost, I was getting a new unit that could be returned if it wasn't compatible with the electrodes.I've used it every day (3x daily) since it arrived. See the EMSI patches on my surgery site in use. This unit came with 1 pack of electrodes. You can see they are a bit larger than the EMSI patches. The unit has a very good, clear instruction booklet with it. And the unit is easy to use. I like the fact the controls are protected with covers. That prevents accidentally hitting the controls and getting a painful shock.All in all, I would buy this unit, particularly if you have EMSI electrodes you'd like to use. As I'm writing this review, the electrodes are attached to my calf hopefully stimulating blood flow to the nerve-damaged foot.