Product Feature: The low frequency treatment is by rhythm and soft impetus. The low frequency is a special electricity with regular rhythm or stop ,According to suitable power and speed on body by low frequency,which make a rhythm and sort impetus on body, The softness of low frequency are as same as massage effect like pressure,pinch and percuss bu human hand. What's EMS Technology? Electrical Muscle Stimulation(EMS ),also konwn as neuromuscular electricalstimulation(NMES) is the elicitation of muscle contraction using electric impulses. The impuleses mimic the action potential coming from the central nervous system,causing the muscles to contract.EMS is proven to be quite effectiveas a proactive tool for muscle strengthening. What's EMS used for? *Muscle strengthening Rehabilitation purposes *Preventing disuse Muslce atrophy Increasing local blood ctrculation *Relaxation of muscles Cosmetic muscle toning