Voice Amplifier --- as the tool of professional man, such as teachers, tour guides, trainers, etc. SHIDU not only hope it can protect these kinds people’s throat & listeners’ sense, also hope it will bring more confidence to these people and make the communication became more harmonious & beautiful between each other. At the same time, as a voice amplifier enterprise which with highest growth capacity, SHIDU also hope to be the most powerful acoustic voice amplifier brand, even can on behalf of other Chinese enterprises’ understanding of voice and let our brand’s energy spread to all over the world.


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