In principle, there are two ways to enhance memory: one is the improvement of memory quality and the other is the improvement of mnemonic Memory devices are generally also to improve memory quality, that is, right brain development and strengthen the storage capacity of the brain memory location The most complete classification of memory devices is as follows: The first generation is mainly relatively single-function instruments, such as the main improve memory quality Improve memory quality: A-wave inducer; memory hood; eye-brain light wave memory glasses; 3D image memory training system, etc. The second generation is mainly a comprehensive category, both memory quality and mnemonic desktop memory distant mirror; eye-brain sensitivity mirror; 3D eye-brain sensitivity mirror (digital code) The second generation of composite products are the most popular and the highest usage rate, that is, memory with other functions at the same time such as desktop memory distant mirror There are composite products with other functions such as anti-myopia The third generation: the positioning of memory, the most popular and praise is: hippocampal memory activator