Schumann Wave Generator Electromagnetic Wave Version Extremely Low Frequency Pulse 783Hz Earth Resonance Frequency Generator Schumann Wave Generator Electromagnetic Wave Version Extremely Low Frequency Pulse 7.83Hz Earth Resonance Frequency Generator Product features: 1. Low consumption 2. Widely applicable 3. Compact size 4. Stable performance 5. Exquisite craftsmanship Product description: Shuman wave generator, we call it Tesla wave generator and jokingly call it Xuanxue wave generator. It is essentially an extremely low frequency (ELF) electromagnetic wave. According to the multiplication of the speed of light wavelength by frequency, the wavelength of the 7.83HZ electromagnetic wave is 38000 kilometers, which is very close to the well-known circumference of the Earth, which is 40000 kilometers. In fact, Tesla waves are an inherent property of geophysical characteristics, forming an electromagnetic resonant cavity on the surface and ionosphere, and 7.83HZ is the natural frequency of this resonant cavity. When an electromagnetic wave with such a frequency is emitted, it will form a standing wave in the Earth's space and will continue to oscillate for a long time. Product parameters: Working mode: Power 7.83Hz extremely low frequency electromagnetic wave: 0.3mW without any sound Battery life: about 1 year Product size: 16.5 * 13 * 3.5cm Charging method: Equipped with a built-in 2000mA lithium battery, it can be charged using the Type-C interface commonly used on mobile phones (a mobile phone charger is sufficient, with no current limit) Red light on: charging in progress Green light on: Full Blue light flashing: emission status Light off: shutdown/battery depleted Power supply voltage: 5V1A Shipping List: 1 * Schumann wave generator 1 * Type-C power cord _x000D_