One star off because there is absolutely no documentation on what program to use with what ailment . Complete disconnect on programs and usage . additional the programs do not match recommended settings for ailments when you search the internet .unit is reliable compact and easy to use once you figure our what to set it for
Nice unit,small and compact.
I didn't use. Took everything out of case and discovered warning on bag of chemicals in product that can cause cancer. I'm in 9th month of leukemia treatment and am terrified of that warning. I will be returning unused. Was hoping for relief of serious back pain occasionally with scoliosis but not with thus unit. Sorry.
Very happy with my new Tens unit! Great instructions for use
