Very versatile unit
This unit offers both TENS nerve stimulation as well as EMS muscle stimulation. I am recovering from recent back surgery for an impinged sciatic nerve, and I'm using this unit for pain management and nerve stimulation on my foot, where there is still numbness from the impingement, as well as to keep my calf and thigh muscles from being atrophied while I'm not able to work out (this is the EMS part). I own an earlier TENS unit from Belifu, which I used daily before getting this one. The previous one (modelSM9126) worked like a charm, but there are several improvements on this unit, making it well worthwhile. This one has 4 channels, allowing for 4 areas to be treated at the same time, rather than 2. you can treat with TENS and EMS at the same time for 2 different areas, if needed. The battery life is very adequate. I have used it for a week now daily and have not have to recharge it, yet. There is a lock function, which locks in your settings, so you don't inadvertently change them while the unit is in your pocket. All in all this device offers most everything you could ask for, and for a very reasonable price. Very intuitive as far as usage is concerned. Definitely would get it again and recommend it to a friend.
Rating: 5 stars