This portable, rechargeable dual-channel TENS machine provides at home drug-free pain relief by passing harmless signals through the body to block pain signals and stimulate the release of endorphins. It can be used in conjunction with pain relief medication and is a proven treatment for pain used worldwide; recommended by sports coaches, physiotherapy departments and medical practitioners. The rechargeable unit means no additional cost in batteries and comes complete with a set of 4 pads with additional available online. In Association with St John Ambulance ; Safe & Effective drug-free pain relief. 2 channels with 8 therapeutic modes, allowing user to adjust pain relief as required. 10-60 minute timer. These are not suitable to use during pregnancy. Rechargeable (included). For ages 16 years and over. If youve used our printed catalogue, you may have seen this product listed under a different 7 digit number. Dont worry, the page youre on now is the right one. Unfortunately due to a hiccup at our end, this number was printed incorrectly in the catalogue. Were sorry for any confusion caused.