1.[Relieve Insomnia] This sleep aid Device uses micro-currents to stimulate cortical neurotransmitters to help people with sleep deprivation and insomnia fall asleep as soon as possible. At the same time, it has the function of relieving migraines, relievinganxiety and releasing stress. 2.[Low Frequency Microcurrent ]Low-frequency pulse current microampere level, does not hurt the body's function, still helps sleep after discontinuing use, non-drug, no dependence, through the palm of the hand to pass current, avoiding the risk of directstimulation of the brain current. 3.[Two Frequency Modes] Our sleep aids have two modes. Low frequency mode (sleep mode): low frequency for soothing and relieving anxiety frequency, held in the palm of your Left hand can accelerate to let you sleep peacefully. High frequency mode (excitementmode): high frequency for excitement and inspiration frequency, held in the palm of your Right hand can make you excited and energetic, work and study with more passion. 4.[portability& Easy to operate]This sleep aid has Light weight,small size and easy portability,So it can be used in the office, home and business trips. USB charging is very convenient. Our sleep aid automatically stops after 15 minutes of work,so you don't have to worry about the device being in working condition all the time. 5.[Warning] Don't used with implanted medical appliances,such as pacemakers,which may cause equipment failure or trigger a hazard. This Sleep Aid Device can slowly improve sleep adjustment, But, You need to use it continuously for one week.For friendswith sleep problems, sleep device this is a good gift.