Waterproof breathable sound transmission film for waterproof earphone
The utility model relates to the technical field of waterproof earphones, and discloses a waterproof breathable sound-transmitting membrane for a waterproof earphone, which comprises a connecting ring, the inner side of the connecting ring is connected with a waterproof breathable sound-transmitting...
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Format: | Patent |
Sprache: | chi ; eng |
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