Product Description:
Schumann waves themselves do not directly act on sound or video products to improve sound quality, but rather on the spatial environment, relaxing the body and mind, improving the body's perception of sound and images, improving the efficiency of human health work, and relieving psychological stress. They also have good effects. This product can not only output 7.83Hz Schumann waves, but also adjust the frequency in the range of 0.1Hz to 30KHz. The digital circuit crystal oscillator frequency reference is more stable and has stronger anti-interference ability.

Features:
1. Using high-quality materials, the product has good frequency stability;
2. This product not only outputs 7.83Hz Schumann waves, but also incorporates programmable frequency modulation technology, which can adjust the frequency in the range of 0.1Hz to 30KHz;
3. There are two specifications to choose from according to your needs. The green version only has sine output, while the black board version supports multiple waveforms such as sine wave, square wave, and inverse square wave, which can be selected according to your needs;
4. Digital circuit crystal oscillator frequency reference, more stable and stronger anti-interference;
5. The power interface adopts DC5.5 * 2.1 or Micro USB interface, which is convenient to use. The USB end can be plugged into the power bank, USB charging head, or other USB powered devices to work.

Parameter:
Antenna waveform: sine wave
Interface waveform: sine wave+square wave+inverse square wave (the bottom left corner is the output interface, and the waveform is output simultaneously)
Power supply interface: DC5.5 * 2.1
Power supply voltage: 5V
Rated power consumption:<1W
Default frequency: 7.83Hz
Adjustment range: 0.1Hz~30000Hz
Sinusoidal signal voltage amplitude: 3V
Square wave signal voltage amplitude: 5V
Circuit board size: approximately 15 * 14CM
Size with shell: approximately 15.5 * 14.5 * 2.8CM
Green minimalist version:
Antenna waveform: sine wave
Interface waveform: sine wave
Power interface: Micro USB
Power supply voltage: 5V
Rated power consumption:<1W
Default frequency: 7.83Hz
Adjustment range: 0.1Hz~30000Hz
Sinusoidal signal voltage amplitude: 3V
Square wave signal voltage amplitude: 5V
Circuit board size: approximately 15 * 10CM
Size with shell: approximately 15.5 * 10.5 * 2.8CM
Change frequency method:
Directly input the frequency and press the bottom left button to complete the setting
For example, pressing [7] [.] [8] [3] and then [OK] can set it to 7.83Hz. The default power on output is 7.83Hz, with a setting range of 0.1~30KHz

Usage:
Take out the USB cable that comes with the product, connect it to the circuit board, and plug the USB end into the power bank, USB charging head, or other USB powered devices to work.

Package include:
1 * Schumann wave generator
1 * USB cable