A more upscale version
I have used personal portable TENS units for over 10 years. Over that time they have gotten cheaper," tinnier", less easy to see and use.  This product is slightly larger than those and costs a little more, but not much. It is  more along the line of the ones sold by medical device companies and comes with a great case, instructions and  a variety of pulses that really are varying in intensity and feel. I sent one to my sister also. She ahs never used one and found it helped her hip pain and caught on to how to use it quickly.
Rating: 5 stars