Sam Schumann wave generator does not make any sound and does not directly affect sound or video products to improve sound or image quality,but plays a role in the space environment, can help to relax the physical and mental people,and helps to improve the perception of sound and image by the body,and also helps a healthier body improve work efficiency,and also improved mental stress. Characteristics: This product is a 7,83Hz Schumann wave generator with high accuracy and stability. Schumann electromagnetic waves have a low frequency and can penetrate any material. Each person ma a network of weak currents that, when excited by Schumann waves, will produce frequency resonances. The overall balance of human meridians is maintained by receiving the Schumann electromagnetic field and cellular frequency resonance of the human body to reduce the damage done to the human body by EMF ionizing radiation. Human frequency resonances can be induced by complementing natural geomagnetic interference and artificially suppressed electromagnetic field (EMF) and balancing membrane potential matching. Designed to enhance do inspiration for creation, relaxation and productivity, the space is designed to create space, increase inspiration and be used do tea ceremony to rest mind and body. Widely used in daily life, it can be used do HIFI or sleep, and also ma a mild effect on insomnia. You can use it in the audiovisual space to amplify the sound field and audiovisual effects. You can use it in the bedroom to improve sleep quality, soothe nerves and regulate insomnia, and in the office to improve your productivity. Plus, it can help remove odors and smoke, making the air fresher. Easy to use, no ma need to connect to other devices, just plug in and use. The work light can be turned on or off according to your preferences. Consider placing it on a desk or shelf 1,5 m from the ground. Technical data: Name: Schumann resonance generator Material: ABS Type: with housing Power: 5W Frequency: 7.83Hz Input Power: 5V Interface: USB Product Size: 102*80*18 mm / 4,02*3,15*0,71 inch Package Weight: Without housing: 66g/2,33 oz With housing: 164g/5.78oz List of things do packing: 1 * Schumann resonance generator; 1 * USB cable 1 * transparent housing Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.