■ Body Size (cm): Width 7.1 x Height 7.1 x Depth 3.1 inches (180 x 180 x 80 mm) ■ Material / Material: PVC resin, polyacetal, ABS resin, polyurethane ■ How to use: Adjust the position of the ear pads according to the size of the head. ■ Caution for Use: ● For safety purposes, it is not possible to hear the sound completely. Do not use for anything other than the intended purpose. Please refrain from accident or injury. Please do not use or store in high temperatures as there is a risk of heat deformation. ■Country of manufacture: Taiwan