The present invention provides an earmuff, including a housing and a ring-shaped ear cushion installed on the housing, the ring-shaped ear cushion having a first cambered surface, a second cambered surface, a third cambered surface and a fourth cambered surface connected sequentially, wherein the first cambered surface is connected to the second cambered surface at a first under trailing edge cambered surface connection, the first cambered surface is connected to the fourth cambered surface at a second under leading edge cambered surface connection, the second cambered surface is connected to the third cambered surface at a third up trailing edge cambered surface connection, the third cambered surface is connected to the fourth camber surface at a fourth up leading edge cambered surface connection, and the thicknesses are reduced gradually to form the ring-shaped ear cushion in different height around the cushion. By this present invention, when wearing the earmuffs, the ring shaped ear cushion can cover the different heights and concavities of the user’s ears’ structure. Therefore, this present invention can provided a totally cover and soundproof.本創作提供一種耳罩,包含殼體及設置於該殼體上的環狀耳墊,該環狀耳墊包含依序連接的第一弧面、第二弧面、第三弧面、及第四弧面,其中,該第一弧面與該第二弧面的第一後緣下方連接弧面、該第一弧面與該第四弧面的第二前緣下方連接弧面、該第二弧面與該第三弧面的第三後緣上方連接弧面、及該第三弧面與該第四弧面的第四前緣上方連接弧面的厚度依序遞減,形成該環狀耳墊周緣高度不一,藉以本創作之耳罩穿戴於耳朵周圍時,該環狀耳墊恰可完全覆蓋使用者耳朵周圍凹陷高度不一之耳朵周緣結構,因此本創作之耳罩的環狀耳墊可以提供完全之包覆與隔音。52‧‧‧右環狀耳墊53‧‧‧第一右弧面54‧‧‧第二右弧面55‧‧‧第三右弧面56‧‧‧第四右弧面57‧‧‧第一右後緣下方連接弧面58‧‧‧第二右前緣下方連接弧面59‧‧‧第三右後緣上方連接弧面60‧‧‧第四右前緣上方連接弧面72‧‧‧右環狀耳墊73‧‧‧第一左弧面74‧‧‧第二左弧面75‧‧‧第三左弧面76‧‧‧第四左弧面77‧‧‧第一左後緣下方連接弧面78‧‧‧第二左前緣下方連接弧面79‧‧‧第三左後緣上方連接弧面80‧‧‧第四左前緣上方連接弧面
