Description
Features:
1. This product is made of high quality materials, using low temperature drift crystal oscillator and high precision DAC special chip, the product has good frequency stability;
2. This product not only can output 7.83Hz Schumann wave, but also joined the programmable frequency modulation technology, can be adjusted in the range of 0.01Hz ~ 100000Hz frequency;
3. Digital circuit crystal frequency reference, more stable, stronger anti-interference;
4. Power supply interface adopts Type-c interface, easy to use, support Type-c to Type-c power supply.

Product Description
Schumann resonance does not improve sound quality by acting directly on audio or video products. Instead, it acts on the spatial environment to relax the body and mind, enhance the body's perception of sound and images, boost physical health and work efficiency, and effectively relieve psychological stress. Therefore, headphones or speakers are not necessarily required for its operation.
If you wish to hear audible sound, headphones or speakers must be used, and the volume can only be adjusted via the headphones or speakers themselves. Some headphone or speaker models without volume control may not produce audible sound. In addition, the default frequency of this generator is 7.83 Hz, which is inaudible to the human ear. To hear sound, please adjust the frequency to above 150 Hz.
This product can not only output 7.83Hz Schumann waves, but also adjust the frequency within the range of 0.01Hz–100KHz. Adopting a digital circuit crystal oscillator for frequency reference, it features higher stability and stronger anti-interference performance. Equipped with a low-drift crystal oscillator and a high-precision dedicated DAC chip, it can accurately output frequencies and pure sine waves.

Product Parameters:
With acrylic shell version:
Operating voltage: DC 5V (DC 4-15V)
Working current: 9-14mA
Power supply interface: Type-c (support Type-c to Type-c power supply)
Default frequency: 7.83Hz
Adjustment range: 0.01Hz~100000Hz pure sine wave
Signal voltage amplitude: 3V
With 3.5MM audio output connector
With acrylic case
Size: 155*105*26MM (with shell)

Product list:
1X signal generator
1X Acrylic enclosure