PainX Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sort by editor review Added to wishlistRemoved from wishlist 0 Add to compare Soterix Medical PainX TENS Wireless Tens Unit Muscle Stimulator with EMS – FSA Tens Unit for Back Pain, Knee, Neck and Face with USB Rechargeable Device and Remote, Designed in USA, 4 Electrode Pads Added to wishlistRemoved from wishlist 0 Add to compare $89.99