Description Improves blood circulation， eliminates eyestrain and eye muscle tensionPrevent myopia or suspends turning into high myopiaPrevents or alleviates eye pouch， dark circles and wrinkleHelps insomniac to relax nerves and fall asleepSuitable for anyone who excessively use eyes， like IT workers， writers， accountants， students， etc.Adjusting massage time， easy to control the massage periods， safe eye health carePowered by 2*AAA batteries (not included)Packet content:1 x Eye Care Massager1 x English User Manual