IN-EAR HEADPHONES (VERSIONS) AND METHOD OF WEARING THEM Russian patent published in 2017 - IPC H04R5/33 H04R1/10 

FIELD: physics.

SUBSTANCE: in-ear headphone comprises a casing with the electroacoustic transducer, a wire, a mechanical part connected to the casing by a cylindrical hinge and holding a shaft adapted to rotate, a resilient element, a guide for the wire. The resilient element and the guide are on the same plane with the shaft rotation axis and are oriented in the opposite directions from the shaft rotation axis. The tone hole is located at the end of the acoustic part, opposite to the cylindrical hinge, is provided with a grid and disposed so that it excludes the possibility of clogging the tone hole. The cylindrical hinge is adapted to rotate the shaft at the angle α of 70 degrees or more. The device also comprises a bone-conduction microphone. A thread is inserted inside the resilient element and fixed there by a washer. The resilient element and the shaft are hollow in the wire cavity forming a loop and connected to the transducer by the electrical connector. Also, the device comprises a retracting mechanism comprising a twisted coil spring. The connection of the wire and the headphone can also be made by means of the brush-collector unit.

EFFECT: expanding functionality.

54 cl, 27 dwg