NURSAL Tens Unit Muscle Stimulator, 4 in 1 TENS EMS Machine with 25 Modes Include DIY, 40 Intensities Electric Massager for Shoulder, Back Pain Relief, TENS Pads, A Carry Case

Good Quality easy to use and works perfectly.

As I write this I am enjoying a DIy setting of P1 and 95 hz frequency on both channels set to 15 respectively. Have issues with back pain and spinal pain from between shoulder blades to tail bone, this helps so much towards relieving the pain. The versatility and range of settings make this flexible for various kinds of injury or pain management. It takes the pin style pads and I find the larger ones of 2x3 inch works great to cover large areas so order some when you order this. Easy to setup and adjust then close the lid to prevent unintentional operation. Enternal rechargeable battery last a very long time, like days before recharging is necessary. Size and quality make it a good value for the money.

I purchased separate VNS ear clips. I had trouble because the ear's high electrical resistance didn't allow the unit to sense that it was connected. The intensity reset to zero when I tried to increase it. The ear clips touch the skin over a small area, unlike the larger skin patches that one would use for like back pain. The small area affects the resistance of the connection to the body. The unit will not allow the intensity to increase until it senses a connection. I placed a 100K ohm resistor across the leads of the ear clip, and the unit could sense the connection, which worked well. This solution may not be for everyone, but I noticed another reviewer had the same issue using regular patches. I don't know if I would need the resistor if I pre-wiped the ear with a saline solution around where the VNS ear clips touch. It would be good if the device were more sensitive to higher body electrical resistance.

Great for post shoulder surgery

I'm amending my review, because I believe the first device I received probably had issues, and after speaking with the vendor, they provided another one to try and it has performed very well. I wish it had snap on pads, but that's just personal preference. Original Review This has lot's of good features and a nice case. The amount of controls were great for what I wanted, and I was particularly excited about the dials for intensity, opposed to the typical push button. Having said that, the dial seems to have been the thing that broke. I would turn up the intensity but then it would go back to 0 after about 4 or 5 clicks. Maybe mine was just a dud, but I ended up having to return it.

I injured my back a little over a month ago, and no treatments were helping. Got this nifty little unit in the mail about 9 hours ago, and feel GREAT! Very lightweight, portable, and easy to use, with lots of programs, intensities, and modes. I've used a TENS before, but nothing like this! Oh, and really appreciate the compact hardshell case, too.

Do not order this product! Customer service is awful! The product shocks you at times and the numbers eventually disappear. Their solution to my issues with the product was to purchase another one at 30% off…NO Thanks!

Es el mejor que he probado por ahorita tanto así que compre uno más pues la batería es muy buena y los modos son bastante equilibrados me gustaron

Funciona, y aunque llego un par de días tardes estoy muy muy contento.