Portable portable version (Schumann wave) very low frequency pulse generator (original design)About switch design: There are individual customer feedback switches that are difficult to pull. We mainly consider portable in the design, and it is easy to be accidentally closed by the clothes during the process. Therefore, the protective switch needs to be lightly pulled with a nail tip or other fine objects. This is a small device that produces extremely low frequencies, which produces a very low frequency of 7.83 Hz, which has another name called Schumann Wave; Schumann explained: In 1952, Schumann pointed out that the Earth and the ionosphere can form a resonant cavity. There is a special resonant frequency in the cavity. This frequency is mainly determined by the size of the Earth and is excited by the global lightning discharge. The resonant frequency is called Schumann Resonance. The spectrum of the Schumann resonance is in the ELF band, and the frequency is about 8 Hz (this value is a lot, 7.83/7.5/7.2, etc.), which happens to be the alpha and theta waves of the human brain. It is also close to 7.8 Hz, so someone called the Schumann resonance the brainwave of the earth. It is a beneficial pulsating rhythm wave that appears in the ionosphere of the atmosphere. Its frequency is 7.83 Hz, which is exactly the same frequency as the hippocampus in the mammalian brain. ” According to various literatures and feedback from ZERO-ZONE's many customers, Schumann has a wide range of applications, and this version is a portable portable version that uses battery power and is suitable for the following people:1. Office creative team, brainstorming2, travel - business people3, lay, practice, meditation4, writing, painting, etc. need meditation creatorsThe biggest feature of this version is: meditation, meditation anytime, anywhere Size: 57*76*13MM, very small, weighs about 55 gramsNot yet a cigarette case, almost the same as the card caseAbout use: The portable Schumann wave generator is powered by 3.7V lithium battery and has a theoretical cruising time of 56 hours. It can be charged by using Anba mobile phone charger (customer-supplied, the product does not match this accessory) Charging uses a blind charge form, which can be fully charged in about 3 hours. The outer casing of the product is made of aluminum alloy, which has a certain attenuation to the Schumann wave. Please keep the charging port facing up when you are carrying it. In other cases, please look at the special pattern opening of the fuselage. The fuselage opening and design, the principle of using small hole imaging, It is generally recommended to use a distance of not less than 40CM. The Schumann wave generator is an auxiliary device that acts on the human body with a weaker frequency of the auxiliary radiation intensity. When there are several cases, the Schumann wave will fail: The surrounding environment is too noisy, and the various types of waves are much larger than the Schumann wave generator. The human body is in an excited, excited state Individual Differences