[. . . ] This product's packaging materials are recyclable and can be reused. [. . . ] â· Do not use headphones while driving a bicycle, motorcycle or automobile. â· When using headphones, for safety keep the volume to a level at which surrounding sounds can be heard. â· Always keep the headphones (particularly the ear pads) clean. â· Do not use benzene, thinners, or other organic solvents or insecticides on the main unit since they may cause a change in quality or color. [. . . ] Check the markings on the housing, and place the headphones over your head so that the housing marked "R" is over the right ear, the one marked "L" over the left ear. [. . . ]