Group 1 - Guangzhou Tongda Automotive Electric Co., Ltd. and Guangzhou Tongbada Electric Technology Co., Ltd. have obtained a patent for a "touch-type prompt button" with the authorization announcement number CN223092730U, applied on July 2024 [1] - The patent pertains to the field of in-vehicle communication devices, detailing a structure that includes a base, outer shell cover, protective cover, and PCBA board, designed to enhance user interaction within vehicles [1] - Guangzhou Tongda Automotive Electric Co., Ltd. was established in 1994, is located in Guangzhou, and primarily engages in the automotive manufacturing industry with a registered capital of 3,516.86984 million RMB [1] Group 2 - Guangzhou Tongbada Electric Technology Co., Ltd. was founded in 2016, also located in Guangzhou, focusing on research and experimental development with a registered capital of 400 million RMB [2] - The company has participated in 9 bidding projects and holds 221 patent records, in addition to having 48 administrative licenses [2]