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The number of deaf mutes is also very large now. We should pay more attention to this kind of people. At present, there is relevant education for deaf mutes, but it can not be popularized. This product only needs to hang the vibration detector on the neck, watch to transmit relevant learning content, and send out the same vibration frequency to help deaf mutes learn language knowledge.
Jiangxi University of Finance and E
Jiangxi Nan Chang, China
Jiangxi University of Finance and Economics