Abstract: This application discloses a headset, where the headset includes an ear housing and an earbud fastened to the ear housing, the earbud includes an earbud body and an SMA component embedded in the earbud body, and the earbud can automatically adjust a shape to adapt to a wearing environment. This application further discloses another headset, where the headset includes a headband and earmuffs connected to the headband, the earmuff includes an ear housing, an earpad fastened to the ear housing, and an SMA component embedded in the earpad, and the earpad can automatically adjust a shape to adapt to a wearing environment. The headset has high wearing comfort. This application further discloses a headset assembly including the foregoing headset and a related method.

Abstract: A method for forming a footwear sole is disclosed. Specifically, there is provided a sole mould for fabricating high-quality shoe soles with great efficiency and a method of using such a mould, wherein the soles feature good air permeability and perfect match with the feet by automatically adapting themselves to the shape of the feet. The sole mould includes a first mould for injection-moulding the underside of a leather layer, and a second mould for injection-moulding the upper surface of the leather layer to form the sole. Further, the first mould is configured in the same shape as the fore sole of the foot and the second mould is configured in the shape of a complete sole.