The 3 Best Small & Wireless TENS Units for Back Pain (2019 Reviews)

TENS units are one of the most popular drug-free, non-invasive and non-addictive ways to continuously relieve back pain on the go. Small, wireless TENS units allow you to use your TENS unit with a remote control – without attaching any wires to the electrodes, and without any wires hanging out of your pocket. But: With […]