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Minor law / Equipment

Minor law

Through the design of dust plug, insert the headphone hole to realize the handset mode switching, and then insert ordinary headphones when not in use. Nor will it affect the normal use of headphones, so that you can choose the entertainment state or working state.

University

Huaiyin Institute of Technology

Huaiyin Institute of Technology
Huai'an, China

jianhua yin,
Huaiyin Institute of Technology