Features:
* Made of materials, sturdy and
* This product is a reflection of the feeling of electromagnetic waves acting on the soul. The human body has different sensitivities to the environment. In other words, the mind and feelings are also different, so the use and feeling of the product are not intuitive. Physicists point out: the  of the earth and ionization The layer forms a resonant cavity with a very low frequency, and the resonant frequency is 7.83HZ.
The wavelength of the for Schumann wave resonance frequency is exactly equivalent to the circumference of the earth, which translates into a frequency of about eight to ten hertz. The human brain nervous  will also produce a coordinated response to electromagnetic pulses of this frequency. for Schumann waves replenish energy for human cells. Human health depends on for natural energy and physical and mental balance. Please try this product on the speaker.
* for Schumann waves themselves are not directly applied to audio or video products to improve the quality of sound and images, but to improve the spatial environment, the human body's perception of sounds and images, and the to nature and life.
* Suitable for audio-visual spaces, bedrooms, offices, creative spaces, tea ceremonies, meditation spaces, .
* With USB cable
* Built-in 1000MHA battery, o ne charge can last about 1 month

Specification:
Name: for Schumann wave very low frequency generator
Frequency: 7.83HZ
Power: 0.5W
Output waveform: square wave
Blue light flashes, normal transmitting status (normal )
The red light is on, charging
The green light turns on and it is fully charged.
If all the on the working switch , it means the battery voltage is low and needs to be charged. It is recommended to charge frequently, once a month.

Package Included:
1 x for Schumann Wave VLF Generator
1 x USB cable

Note:
1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2.Please allow slight manual measurement deviation for the data.

Payment must be completed within 5 days. If you have any problems about payment, please contact us via ebay message.

We only ship to confirmed ebay Order addresses. Please comfirm that your Order address is in line with your shipping address.

Please kindly note that the combined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size. 

It takes about 7-15 working days to US; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection. If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance.

We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, please feel free to contact us via "Ask seller a question" . We will reply your email within 24 working hours.