MOI is an effective way to get period pain relief and menstrual cramps at home. It is a Tens + Heating therapy device for period pain relief.MOI is a combination of scientifically proven TENS and Heating Therapy that have been clinically tested. TENS Therapy releases endorphins, the body’s natural painkiller, which helps with pain relief. It also blocks pain signals from the brain and increases blood flow to the area. Heat therapy relaxes the abdominal muscles and uterine contraction and helps to ease the pain. The intensity and temperature of TENS and Heating can be adjusted to provide the best relief for the user. This dual action of TENS and Heating Therapy helps in relieving period pains and cramps without any side effects.