Dongguan Callsun Electronic Technology s a high-tech enterprise focused on the research, design, production and marketing of teaching wireless microphone systems, which are based on IR wireless audio transmission and 2.4GHz frequency hopping coding technologies.
By making a great breakthrough in IR wireless transmission distance (from the traditional 5 meters increased to more than 10 meters), our company succeeded in obtaining the national practical new-type patent in 2007 (patent number: ZL 2007 2.0055874.2). Our engineers have also compared the advantages and disadvantages of various PA systems and have applied IR technology to the design and R&D of the teaching PA system. This led us to the IR wireless microphone system. Not only does it overcome the inconvenience of wired microphones, it also overcomes problems like easy string frequency, easy interference, difficult management and maintenance and difficulty in gaining ground in FM wireless audio fields. At the same time, it improves the voice quality, embodies the teachers' personality and avoids electromagnetic wave radiation damage to the body. In a word, it is the healthy green teaching amplification equipment.
Our goal is to reduce teachers' burdens whilst improving teaching environment and creating the healthy green campus through our technological innovation. We also want to help teachers have a healthy and practical microphone to be able to protect their voice and body so they can keep teaching.
To learn more about our products and services, send us an inquiry today.
