Douk Audio 7.83HZ Schumann Wave Ultra-low Freq Generator Sleep Relax

Douk Audio 7.83HZ Schumann Wave Resonance Ultra-low Frequency Pulse Generator Sleep Relax
Note, the product has been opened. 
 
Features

Schumann wave itself does not make any sound, it is not directly acting on the sound or video products to improve the quality of sound or vision. It's working on the space environment, make the people's physical and mental get relaxed, improve the body's perception of sound and images, improve the human body health and working efficiency, it also has a good effect on insomnia, mental strain and so on. For more information please Google "Schumann Resonance".
 
For audio-visual space - to enhance the sound field and audio-visual effects
For the bedroom - to help sleep soothe the nerves, treatment of insomnia
For the office - relax and improve work efficiency
For the create space - to improve creative inspiration
For the tea ceremony, spirituality, realization space - resting body and mind 
 
Parameters
 
Frequency: 7.83Hz 
Size: 150 * 120 * 40mm
Weight: 0.4Kg
Rated voltage: DC 12V
Rated current: 1.5A
Applicable voltage: 100V-240V Universal
Including accessories: DC 12V Power supply.
 
Notes
 
The FM 783 Schumann wave generator is an auxiliary device that acts on the human body at a relatively weak frequency, and Schumann wave will fail in the following cases:
The surrounding environment is too noisy, all kinds of waveform more far than the Schumann wave generator radiation intensity.
The body is excited, excited state.
Each type of continuity under the big volume of DJ music.
 
General application

Suggested that the goods placed a height of 1.5 meters, a single product should be in the area of ​​not more than 18 square meters, more than one, please purchase more than one. It is recommended to use a matching linear power supply.