As a distributor of learning machines, NP880 is slightly better in game entertainment functions (MP5 and super game machine), and NP980 has the learning king function introduced by Noah, which is suitable for junior students. BBK mainly focuses on learning performance, but it also adds many new functions to compete for the market. For example, foreign language 9688 has brought 6.5438+0.3 million cameras and MP4 functions, and it is the mainstream learning machine on the market at present. 9588 just lacks some functions and belongs to the early futures of 9688. According to the user's age level, the lower grades (below high school) choose the king of search learning, and the other three high schools are considered.