Description:Application: Schumann wave does not directly affect speakers or video products to improve sound quality, but it does work on the space environment.7.83Hz low frequency: Schumann wave extremely low frequency 7.83Hz compensates for the frequency of negative interference from electromagnetic waves. It makes the reverberation of the sound space stable and harmonious, so that listeners can enjoy music more focused and enjoyable. Benefits: can improve the human body & #039; s sound and image perception, improve the health of the human body. Improve the efficiency of job creation, as well as have a good effect on insomnia and mental stress. Features: high stability of pulse system, has high accuracy and stability. The durable material ensures its durability and long service life. Portable: This module is lightweight and compact, easy to carry. Note: Please use an independent regulated power supply for each device to avoid mutual interference between multiple common power supplies and facilitate independent placement. Outdoor installation step 1: remove the large panel and place the module on the panel. When the 4 module screw holes and the 4 shell plate screw holes are aligned, check whether the shell panel card slot is locked. If it is locked, the panel must be flipped. This step involves determining the front and back of the bottom plate. Specification:Material: Electronic Component Color: As shown in the picture Size (LxWxH): About 113x91x23.5mm/4.45x3.58x0.9inch Types: 1 (without case), 2 (with case)Voltage: DC5V Current: 0.5A or morePackage Included:1pc x Schumann Wave Generator1pc x USB to DC0051pc Cable x Case (for Type 2 only)1pc x Installation Accessories PackageNote:1. Because of the light and the difference screen, the thing & #039; s color may be slightly different from the pictures.2. Please allow 1-2cm differences due to manual measurement. Note:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee that the style is the sameAs shown in the pictures, but not the same performance on different bodies as the model.2. Compare the detail sizes with yours, please allow 2-4cm differs due to the manual measurement on clothes, thanks to all measurement in cm and please note 1cm=0.39 inch1) we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow.2If you are unable to check out immediately after the listing ends, please wait forA few minutes and try again payments must be completed within 3 days.1)