Feature: 1. Schumann itself does not directly affect the sound quality of audio or video products, but acts on the space environment to relax people's mind and body and improve the human body's perception of sound and images. 2. Suitable for music lovers with sensitive ears or sensitive nerves can enhance the subjective feeling of music appreciation, the sound is clearer, purer and more natural. 3. For people who are sensitive to nerves and often dream, it is more suitable. Sleep will be relatively quiet. In the early morning, half-awake and half-awake will increase the resonance of wave, and the dream will be reduced. It will not fatigue after waking up. 4. For audiovisual space, bedroom, office, tea ceremony, Zen space. 5. This product is produced with accurate components. The input voltage is DC 12V. The power can be purchased from the store or purchased by other stores. It can be placed on a table or on a shelf 1.5 meters above the floor. Avoid getting close to other appliances. This product consumes very little power, has no switch, can be operated by plugging in the power supply, with colorful breathing lights. Specification: Item Type:Schumann Wave Generator Schumann wave is applied to HIFI: 1, the player has a certain HIFI experience, HIFI equipment level can not be too low; 2. Can hear and distinguish the timbre changes brought by different wires on the same system; 3. It is recommended to purchase two sets for trial use (the effect is better); 4. Put the product on the speaker during trial use, add appropriate weight for anti-vibration treatment; Schumann wave is used to help sleep: 1. It is recommended to purchase a set for trial use and put it on the side of a set of beds, which is more than 1 meter away from the human body; 2. When trial, add appropriate weights for anti-vibration treatment; 3. Appropriate use of paper cloth to block the indicator light to remove night light from the product; 4, try a week, analyze the feeling of use for 7 days; Voltage:DC12V Plug:US Plug 110~240V Package List: 1 x Generator1 x Screwdriver1 x Power Adapter Note: Nothing can fit everyone, even the same solution, everyone is very different, so Schumann is not everyone can accept the experience, but science still believes. For example, the geomagnetic effect of sleep, different heading effects are different, but you have to believe.This kind of similar product was first produced in Japan. After market testing, it has certain metaphysical effects, although not everyone can feel or experience the effect.Head to sleep, don't head west, change to east or south.