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To the public security, prosecution, defense and other government departments to provide expertise within the industry to meet the world's most advanced military and police communications products in harsh environments

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My company developed whole bone conduction headphones, has be…2013-10-16

My company developed whole bone conduction headphones, has be…

My company developed whole bone conduction headphones, has been in the country, the EU and the U.S.

2013-10-16

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