ADJUSTABLE INSERTABLE EARPHONE WITH TWO SPEAKER ELEMENTS Russian patent published in 2012 - IPC H04R1/10 

FIELD: physics.

SUBSTANCE: arrangement of speaker elements is adjusted so that the user can set a more comfortable position of the speaker element. The hinge joint enables to turn the larger speaker element about the vertical axis of the hinge joint so that the larger speaker element can turn to and from the ear of the listener. The smaller speaker element can be adjusted relative the larger element by a connection which provides multiple degrees of freedom of rotation of the smaller speaker element relative the larger speaker element.

EFFECT: size of one the speaker elements enables to insert the element into the cavity of concha of the listener, and the size of the other speaker element does not allow that.

51 cl, 14 dwg