US Patent 11445284 Portable audio equipment

Portable audio equipment comprising: a housing comprising an acoustic passage that protrudes from one side thereof and has an open one end portion; a partition dividing the acoustic passage into a first acoustic passage and a second acoustic passage; an acoustic output unit for outputting sounds through the first acoustic passage; and inner microphone for collecting sounds through the second acoustic passage; and a control unit inside the housing, controlling the acoustic output unit so as to output sounds, and processing the sound collected through the inner microphone, can more effectively cancel external noise by further including the inner microphone for collecting sounds inputted through the body of a user.