Product Feature: 1.this instrument synthetically adopt that frequency difference musicotherapy and brain slow wave inducement therapy, musical electroacupuncture sleep point therapeutics. 2.this instrument avoid the defect of orthodox medicament therapy and start one kind of analgesia, nonpoisonous, no addiction, no side effect. 3.you can get incogitable favorable effect after three periods of treatment. Which has been validated by thousands of users Product function: 1 improve sleeping, quickly eliminate cerebra weariness and reach deepness of sleep. 2 indeed solve your problem of chronic sleep 3 enhance immunotherapy, make for the health of body 4 leave senescence and be useful of skin