After listening to several speakers, I thought the sound quality of Lanxin's speakers was still good, but I felt that they were all a bit expensive. Generally, those with relatively good sound quality were mostly priced around 250-300 yuan. After comparing many options, I finally found that Lanxin's X-999 model was quite good, with truly remarkable sound quality. I almost listened to all the speakers available at the store owner's place, and this one had the most comfortable sound quality, yet it wasn't the most expensive! The store owner told me that this model should have the highest cost-performance ratio because its two satellite speakers use OEM speakers (professional car full-range speakers). Multiple trials of sound testing clearly demonstrated how excellent they are, as the layers of the sound were very distinctly separated.