Buying a reading pen depends on two aspects. First, the quality of pens, including hardware structure and sound quality, can be judged by watching and listening; The second is books. Without books, the point reading pen is a piece of waste plastic, so choosing books is also a consideration for parents. I have come into contact with the pens and books of Hong En, Kubi and Yidubao. Now tell you my opinion, the quality of the three pens is ok. In terms of books, Kubixiong's books were compiled by experts (Yuan Ailing, doctoral supervisor of China Normal University, and U.lin, an expert in answering questions from Tencent). According to the idea of solving the problem of no tools, no time and no methods in family early education, a set of systematic books on literacy, pinyin, mathematics, English and music were made. Hong En's greatest advantage is English. Hello, Teddy and GOGO learn English in a civilized way, and then they are more and more sophisticated. There are many good books to read, but the quality of printing and the exquisiteness of pictures are worse than the price, and there is no connection. Personally, if parents don't have a good method and a lot of time to teach their children, they will choose Cool Bear. The children have learned a lot of Chinese characters and need to concentrate on learning English, so they chose Hong En. As for easy-to-read treasures, forget it. They will publicize that the products themselves are not good.