- No meds needed - this Kinetic TENS machine will get you rid of sore muscles or nagging pain in no time - Its fifteen intensity levels lets you pick what feels right, whether it's for your back, knees or period cramps - Baby on the way? It's safe to use during the first 12 weeks of pregnancy - Stick on the adhesive gel pads to hit multiple pain spots at once- When you're done, just pop it in the carry case and take it wherever you want