Patent ID: 11877111
Assignee: SHENZHEN SHOKZ CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. The earphone of claim 1, wherein an acoustic resistance net is disposed at the first sound hole or the second sound hole, the sound resistance net including a plurality of holes, and the acoustic resistance net satisfies at least one of the following conditions:
a sound resistance of the sound resistance net is in a range of 45 Mrayls-320 Mryls;
an aperture of a hole in the plurality of holes is in a range of 15 μm-51 μm;
a porosity of the acoustic resistance net is in a range of 11%-18%; and
a thickness of the acoustic resistance net is in a range of 55 μm-108 μm.