| CPC H04R 9/063 (2013.01) [H04R 1/00 (2013.01); H04R 1/10 (2013.01); H04R 9/02 (2013.01); H04R 9/025 (2013.01); H04R 9/066 (2013.01); H04R 31/00 (2013.01); H04R 25/606 (2013.01); H04R 2460/13 (2013.01)] | 20 Claims | 

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               1. A speaker, comprising: 
            a housing; 
                compound vibration parts residing inside the housing and configured to generate vibrations to produce a sound wave inside the housing, wherein 
                the compound vibration parts include two or more vibration parts at least partially attached to each other, and 
                at least one hole located on the housing and configured to guide the sound wave inside the housing to an outside of the housing; 
                a panel connected with the compound vibration parts; 
                a vibration transfer layer, a portion of the vibration transfer layer being in contact with the panel, and a portion not being in contact with the panel on the vibration transfer layer having one or more holes configured to guide the sound wave inside the housing to the outside of the housing; 
                at least two microphones, the at least two microphones including a first microphone with a first orientation and a second microphone with a second orientation different from the first orientation. 
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