I am so glad I decided to purchase the rechargeable option instead of going through 9V batteries like crazy. Just do NOT drop any of the units if you can at all help it, they do not run as well after.
So far so good. The TENS unit works as advertised. Am considering wearing the unit while I play golf tomorrow, and will give myself a jolt when I need it.
Very easy set up , don't know yet just started ,felt like it was definitely doing it's job 👍 keep you posted
Really helped the pain in my shoulder. Was easy to set up and use. Still learning what all it can do