Description:
Schumann wave does not directly act on speakers or video products to improve sound quality, but acts on the space environment. Schumann wave 7.83Hz offsets the frequency of negative interference from electromagnetic waves, which makes the sound space reverberation stable and harmonious, allowing listeners to enjoy music more concentrated and enjoyable. It can improve the human body's perception of sound and images, improve the health of the human body, improve the efficiency of work creation, and also have a good effect on insomnia and mental stress. The Schumann wave generator itself does not emit any sound, and is not connected to other devices. It can be used only when plugged in.

Features:
- Waveform: Pure sine wave.
- Transmitting Frequency: 7.83Hz stable output.
- Signal Source: Adopts frequency locking and waveform shaping technologies.
- Power: Post-end added with power amplifier circuit for higher output power.
- Emission Efficiency: More than 1000 coils are wound on a high magnetic permeability silicon steel rod, which effectively increases the intensity of the electromagnetic field radiated into space.
- Power Supply Port: Powered via MicroUSB port. It fits for Android smartphones. It supports cellphone chargers and power banks, making it accessible.
- Peak Power: 2-10W three-gear adjustable.
- Power Supply Switch: Yes. It works for current above 2A, outperforming ordinary toggle switches.  
- Light Switch: Yes. It works for current above 2A, outperforming ordinary toggle switches.

Package Included:
- 1 x Schumann Wave Generator
- 1 x Power Supply

Note:
- Please use cellphone original charger and charging cable above 2A to power it. Poor chargers and cables will make our product effects dim. It fits most smartphone chargers. It is not suitable for Huawei P30 Pro charger. Power banks 20000mAH and above are recommended.  
- Before using, please plug the power supply and then turn on the power supply switch on the generator.
- In normal working status, red light is steady on and green light flashes. The heat dissipation hole is warm after operating for half an hour. If red light and green light flash irregularly, it is not normal. Please turn off the power supply switch on the generator and then turn it on again. When red and green lights still flash irregularly, it means that the power supply is not working and the current is not enought. Please replace with a high-power power supply. When the charger is plugged in, the generator does not work, please replace the power supply.

Package: Normally we use the standard exporting packaging. We also can according to clients' request .

 Shipping : 

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier  we are co-operating at present.

2. By Air: Delivery from the Shanghai airport to customers’ destination city air port.

3. By Sea: Delivery from the Shanghai sea port .

Q1. Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.

Q2. What about the lead time?

A: Samples arrived often need 3-5 days.

Q3. Do you have any MOQ (minimum order quality)limit?

A: Low MOQ, 1pc for sample checking is available.

Q4. How do you ship the goods and how long does it take to arrive?

A: We often ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping is also optional.

Q5. How to proceed an order?

A: Initially, let us know your requirements or application. Besides, We quote according to your requirements or our suggestions. Thirdly, customers confirms the samples and places deposit for formal order. Finally, We arrange the production.

Q6. Is it acceptable to print my logo on the product?

A: Yes. Please inform us formally before our product and confirm the design firstly based on our sample.

Q7: Do you offer guarantee for the products?

A: Yes, we offer one-year warranty for our products.

Q8: How to deal with the flaw?

A: Our products are produced in strict quality control system and the percent of pass is often maintained over 99.8%

Please do not hesitate to contact me if you need any further information

Whatsapp/Tel/Wechat: 8619902906050

Web: //www.thanksbuyer.com

Address: Room 303 Building 2,Youpin Cultural and Creative Park,Zhangkeng,Minzhi Street,Longhua District,518131,Shenzhen,China(Mainland)