| CPC H04R 25/505 (2013.01) [G10K 9/13 (2013.01); G10K 9/22 (2013.01); G10K 11/175 (2013.01); G10K 11/178 (2013.01); G10K 11/26 (2013.01); H04R 1/025 (2013.01); H04R 1/10 (2013.01); H04R 1/2811 (2013.01); H04R 1/2849 (2013.01); H04R 1/288 (2013.01); H04R 1/345 (2013.01); H04R 9/066 (2013.01); G10K 2210/3216 (2013.01); H04R 1/2876 (2013.01); H04R 17/00 (2013.01); H04R 2460/13 (2013.01)] | 20 Claims |

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1. A speaker, comprising:
an ear hook, the ear hook matches a user's auricle and is hung on the user's ear such that the speaker can be placed on the user's ear without blocking the user's ear canal;
a speaker housing;
a transducer residing inside the speaker housing and configured to generate vibrations, the vibrations producing a sound wave inside the speaker housing and generating a leaked sound wave spreading outside the speaker housing; and
at least one sound guiding hole located on the speaker housing and configured to guide the sound wave inside the speaker housing through the at least one sound guiding hole to an outside of the speaker housing, the guided sound wave having a phase different from a phase of the leaked sound wave, the guided sound wave interfering with the leaked sound wave in a target region, and the interference reducing a sound pressure level of the leaked sound wave in the target region.
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