HANAROCare ReJu is a low frequency electrotherapy device that relieves the stiffen muscle and reduces the pain by delivering a specific rhythmic electric stimulation to the nerves and the muscles through electrode attached to the skin. With 4 stimulation modes(tapping, kneading, acupressure, combination) and different safety functions depending on the situation, the device is easy to operate and simple to portably carry so that it can relieve the pain easily whenever and wherever. For user compliance, it provides rechargeable battery inside. Also, it could be applied for muscle training with a function of electrical muscle stimulation. It acquired CE certification.