The design of Xuanxuetong is inspired by the combination of traditional geomantic omen and modern science and technology. Metaphysics electronic compass continues the essence and fundamental principle of traditional compass, and adds electronic science and technology, which enables Metaphysics electronic compass to eliminate the disadvantages of traditional compass. For example, the magnetic field of modern buildings affects the traditional compass degree, while the electronic compass of Metaphysics can automatically eliminate the influence of the magnetic field of modern buildings on the compass degree through technology. It is a functional product, a high-precision measuring tool, not an ordinary entertainment product, and the cost of research and development technology is high, so the price should be higher. At present, there are two versions of Xuanxuetong electronic compass, one is 38 yuan and the other is 63 yuan.