Item Type:Schumann Wave GeneratorPower Supply:Built-In Lithium BatteryMicro USB Charging,with 4 Light Battery DisplayPower Consumption:5V 0.08AWorking Frequency:7.83Hz, a sine wave is generated by a programmable intelligent chip. Waveform, frequency, and power can be set (fixed by default). Higher frequency accuracy and stability consistency.Another USB-A for External 5V Power SupplySize:80 x 76 x 24mm / 3.15 x 2.99 x 0.94in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Schumann wave electromagnetic wave is extremely low frequency, can penetrate any substance, is non-free radiation. 2Schumann wave is a natural energy source, and it is inexhaustible. Anyone who is easy to resonate with Schumann wave is always obtain energy, and the natural spirit is full and healthy. 3Through the resonance of the accepted Schumann wave electromagnetic field and the cell frequency of the human body, the overall balance of the human meridian is maintained, thereby reducing the damage caused by EMF free radiation. 4When the natural regenerative magnetic field is simulated by electronic means, such as using a square wave generator to generate an artificial 7.83 Hz Schumann wave frequency instead of a natural Schumann wave. 5The generator can induce human body frequency resonance, supplement natural geomagnetism and artificially weaken electromagnetic field EMF interference, and make cell membrane potential balance health.