The lloydspharmacy tens digital pain reliever works by delivering small painless electrical pulses to the body via electrodes placed on the skinthis blocks the way pain signals are sent to the brain and stimulates the body to produce its own pain relieving chemicals called endorphins as a result this may ease pain in an individualfeaturesbull easy to use helps to ease aches and painsbull can be used alongside medicationbull 6 program settingsbull ligh