Earmuff device

The utility model relates to the technical field of earmuffs, and discloses an earmuff device. The resonant frequency of an acoustic vibration system formed by a first cavity and a sound transmission channel of the earmuff device is in a preset frequency band, and the quality factor of the acoustic vibration system is greater than a preset value, so that the vibration direction of sound waves transmitted from the first cavity to a second cavity is opposite to the vibration direction of original sound waves in the second cavity. Therefore, the sound wave transmitted from the first cavity to the second cavity interferes with the original sound wave in the second cavity to weaken the original sound wave in the second cavity, so that the noise in the second cavity is reduced, that is, the noise transmitted to the ears of the user is reduced, and the passive noise reduction effect of the earmuff device is improved. 本申请涉及耳罩技术领域，公开了一种耳罩装置。该耳罩装置的第一腔体和透声通道所构成声学振动系统的共振频率处于预设频段中，且声学振动系统的品质因子大于预设值，使得自第一腔体传输至第二腔体的声波的振动方向与