采用全数字技术传输音频，避免同频干扰，提高无线话筒的实用性。
The machine adopts digital technology transfer audio, avoid with frequency interference, improve the practicability of wireless microphones.
随着大规模集成电路和无线通信技术的飞速发展，人们不再满足过去那种一只话筒、两个音箱的会议模式。
With rapid development of the Large Scale Integrated circuit and wireless communication technology, people no longer satisfied with the conference system made by one microphone and two sound boxes.
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