Over the past decade, brain-computer interface (BCI) technology has expanded beyond the confines of the laboratory and specialized medical fields, gradually making its way into people's daily lives. Its applications can be found in various areas such as health management, personal training, and even gaming and entertainment. This report focuses on consumer BCI products, analyzing the technological developments and application areas of several companies, including FocusCalm, Inteaxon, NeuroSky, and OpenBCI, to identify the key trends in their technology and product application developments.