Whether you're at home, in the office, or on the road, the Lightwave acupressure by Liteaid will help you ease pain and soreness in your most uncomfortable and troublesome areas. Whether you suffer from minor headaches, congestion neck and shoulder tension, knee and elbow strains, or back pain, the Lightwave acupressure uses advanced technology to help you feel instant relief from pain and discomfort. Originally used by astronauts, the technology of the Lightwave acupressure helps your brain release endorphins and put a stop to pain. Using a special "bio feedback" technology, the Lightwave acupressure identifies the exact area to stimulate. All you have to do is turn it on, and apply it to the general area of discomfort!