豪声电子：公司已与多家客户就眼镜用微型电声器件开展联合研发

Group 1 - The company has engaged in joint research and development of miniature electroacoustic devices for glasses with multiple clients [1] - Several projects are currently progressing steadily, but they are still in the customer validation and mass production finalization stage [1] - No actual revenue has been generated from these projects yet [1]