Since 2005 when SOYO Technology founded by a couple of ambitions entrepreneurs who graduated from Tsinghua University, & USTC, SOYO has focused on the development of 2.4G / 5.8G / UHF digital wireless AV transmission technologies, selling its products far across over 150 countries worldwide and regions. Its products cover five major industries: education, tourism, professional audio, smart home audio and outdoor entertainment audio. SOYO has also been providing a full range of digital wireless audio integrated solutions for global top manufacturers, including long-distance high-fidelity wireless audio transmission system, digital wireless home theater system, wireless home background music system and portable/outdoor mobile wireless PA systems, etc and made remarkable and recognizable achievements. SOYO Technology was the first proposer and producer of the concept of digital wireless surround amplifier, SOYO's high-fidelity digital wireless surround amplifier has become one standard component in high-fidelity home theater in Chinese market; SOYO Technology is the largest Chinese manufacturer of Wireless Education PA System and the world's largest supplier of Wireless Tour Guide Interpretation Devices .