Dongguan Yinjie Tiaodong Electronic Technology Co., Ltd. is a large-scale high-tech enterprise specializing in the research and development, design, production, sales, and service of digital products. The company's main products include karaoke devices, karaoke microphones, wireless computer speakers, AM/FM/SW radios, multi-functional card-insert speakers, Bluetooth speakers, karaoke machines, amplifiers, and other electronic products. Its subsidiary brands include YOFITS, KK, Tianchouzhe, and it has also processed major brands such as Happy Companion, LCJ, and Dewant.