Vive 50 Mode TENS Machine for Pain Relief Therapy - EMS & Tens Muscle Stimulator for Back, Body, Recovery, Cramps - Rechargeable Unit with 8 Reusable Electrode Pads & Adjustable Intensities

Not all TENS Units are created equal, I really like this Vive 50 Mode model with its' hand size Control Unit and the large easy to read LCD Screen plus it also comes with a rechargeable lithium battery, the charging is handled with their supplied USB Type C charging cable (you supply the USB Power Adapter) so no more having to stock the 9V batteries ever again! (Btw, one of their pics under the Product Description shows the hand size controller as being 21" x 45", this should have been 2.1" wide by 4.5" long) Their lithium battery is designed to last for up to 8 hours of use so I can use it multiple times before it needs to be recharged and for me the initial charging took between 1 to 2 hours. It comes with independent dual channel cables so you're capable of using up to 4 pads at a time and their cables use the standard pin type connections for their electrode pads that are supplied with this kit (also these are the most commonly available pads for sale on Amazon) which are my favorite since I've never had one of these connections separate like I had happen with the "button snap on" pads while I was shifting positions in bed. All TENS Units work through their electrical impulses to help reduce the pain signals going to the spinal cord and brain, which in turn helps to relieve my lower back pain and relax my muscles.The first 20 modes on this Vive model are set to use for TENS applications but this little machine is also setup to provide another 20 modes for EMS which helps to strengthen muscles and also helps with recovery from a muscular injury and the third set of 10 modes is labeled as Fitness modes by stimulating muscle groups. For me, I will focus on using the TENS applications for my lower back pain and I'll probably never need to utilize the ones for EMS or Fitness but it's nice to know they're available if anyone in my family needs them.I remember back in the early 1990's just prior to my lower back fusion surgery you couldn't buy a TENS Unit over the counter, my Orthopedic Surgeon had to order one through the local medical supply company and it was over $250 but now that has all changed and the over the counter prices are so low that any one can afford them and they are a real blessing if you have pain generated from irritated nerves. From what I've experienced the pain relief is almost instantaneous when my Sciatica flares up, of course it doesn't cure the pain but it does a great job of masking it. If you're in the need of a TENS Unit I can highly recommend that you give this Vive 50 Mode model a try!

I am very pleased with this unit as a TENS machine. I haven't used the EMS or fitness modes much, but placed correctly, they sure do stimulate muscle contraction. My previous experience with TENS was at a chiropractor a couple decades ago, so I can only compare to what a trained professional did. Incredibly, it's essentially identical, except that I get to control it and it's simple to stop and reposition the pads if I feel like one is a bit off the mark. Oh, and instead of a big machine that looked like a oscilloscope controlling a car battery, modern technology has fit this one in my pocket.I really like the case and the choice of different size and shape pads. They are extremely sticky at first, so I would suggest that the first time using them, choose locations with minimal body hair. Also, warm them up in your hands before applying them because they will feel very cold at room temperature.The instructions are helpful, but not exactly what I would call comprehensive. The first time using the device, it was strange to me that after selecting a mode there wasn't a start button - rather, you start by turning up the intensity. I still have not found where the manual ever says this, and I read it twice. Other than that, I think there's enough good information included to get comfortable with the device.The display and controls are pretty basic, but simple gets the job done and at a more budget-friendly price than I would have expected.

The media could not be loaded. Take my review with a grain of salt, because this is my first time using a TENS device, and I have a limited understanding of how it works. I'm only interested in TENS mode (which is specifically for pain management), so I won't focus on EMS nor Fitness modes.Out of the box, this is sleek, lightweight, clean and the instructions were very clear, even for me as a first-time user. It took seconds to get it going. The screen is easy to read and VERY bright (brightness control would have been nice). I love that it's charged via USB-C, and the electrodes feel high-quality, and are self-sticking.The frequencies provided in each mode are the following (These are not typos. They seem to skip some frequencies):TENS: 20, 25, 30, 40, 50, 60, 100Hz.EMS: 1, 2, 3, 5, 6, 7, 9, 10, 12, 15HzFitness: 2, 3, 5, 7, 8, 9, 10, 11, 13, 16HzThe "Modes" cycle through these frequencies, but each frequency is delivered in a different pulse-style the higher you go within the mode. (So, for example, in TENS mode, Mode 8 goes back to 20Hz after 100Hz, but in a different pulse style than before).Overall, this is a great little device at an affordable price. It worked reasonably well for relieving arthritic knee pain.However, do keep in mind that the frequencies are somewhat limited. TENS is not the same as EMS, so according to my superficial internet research (which means I may be wrong), the same frequency in TENS might not work for the same purpose in EMS mode... Which is why for me personally, this unit falls short when focusing on TENS for my specific needs.I need TENS frequencies for mechanical allodynia (low freq 2-10HZ; which this machine does NOT produce; and higher freq 80-100H; only 100HZ of which is available). Now that I know more about how it works and what I need, I can probably get something more adequate for my specific needs. That's on me for not doing the research before getting it. I highly recommend this product. I'd also recommend you look into exactly what studies are out there, and see what frequencies have been proven to work before buying any given machine.