Abstract: An earmuff and head-mounted headphones are disclosed. The earmuff comprises earmuff leather and earmuff sponge. The earmuff further comprises an earmuff airbag made of a soft rubber material. The earmuff airbag comprises at least one hollow enclosed airbag. The earmuff sponge is wrapped on an outer surface of the earmuff airbag. The earmuff leather is wrapped on an outer surface of the earmuff sponge. The earmuff according to the present disclosure increases the conducting media of noise by adding the earmuff airbag. The noise will be continuously reduced after passing through different media, thereby enhancing the passive noise reduction ability of the earmuff, and improving the user experience. Moreover, the earmuff airbag comprises at least one hollow enclosed airbag, which provides a support force to the earmuff and can replace conventional sponge support for the earmuff.

Abstract: An earmuff and head-mounted headphones are disclosed. The earmuff comprises earmuff leather and earmuff sponge. The earmuff further comprises an airbag base and an earmuff airbag made of a soft rubber material. The earmuff airbag comprises at least one hollow enclosed airbag. The airbag base is disposed at a bottom of the earmuff airbag to enhance a support force of the bottom of the earmuff airbag. The earmuff sponge is wrapped on an outer surface of the earmuff airbag. The earmuff leather is wrapped on an outer surface of the earmuff sponge. The earmuff according to the present disclosure increases the conducting media of noise by adding the earmuff airbag. The noise will be continuously reduced after passing through different media, thereby enhancing the passive noise reduction ability of the earmuff, and improving the user experience.

Abstract: Disclosed is wristband and wrist wearable device, including: a wristband body portion, one end is connected to one end of a device body of a wrist wearable device, and the other end is a free end; and a memory metal portion, which is arranged on the wristband body portion and has an arc-shaped memory state in a natural state, so that the wristband body portion is naturally maintained in an arc shape. The memory metal portion comprises a strip-shaped memory metal piece including a first metal segment, a second metal segment, and a third metal segment that are sequentially connected, the first metal segment and the third metal segment extend along a length direction of the wristband body portion in parallel, the second metal segment is arranged at the free end of the wristband body portion and is provided with at least one bent portion.

Abstract: A quartz container manufacturing method and a forming apparatus, relating to the solar photovoltaic technical field, and providing a mold comprising a top cylinder and a mold bottom; during formation of a container blank, when the mold forms a first included angle with a horizontal plane and the mold is rotated at a first rotation speed, the source material forms a first blank on the inner wall of the top cylinder; when the mold forms a second included angle with the horizontal plane and the mold is rotated at a second rotation speed, the source material forms a second blank on the inner wall of the mold bottom; a quartz container is manufactured from a container blank composed of the first blank and the second blank.