MK ELECTRONIC CO., LTD.
MK ELECTRONIC CO., LTD. Patent applications | ||
Patent application number | Title | Published |
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20130156248 | EAR SPEAKER - Provided is an ear speaker that reduces the strain on the eardrums and reduces headphone deafness and, furthermore, can be safely used without isolating the user from surrounding sounds. The disclosed device consists of speakers ( | 06-20-2013 |