[. . . ] Retain these operating instructions and pass them on with the headphones to any future owners. Any duplication and/or reprinting, entirely or partially, as well as reproduction of illustrations, also in modified form, is only permitted with written consent from the manufacturer. The manufacturer assumes no responsibility for damage caused by failure to observe the instructions, improper use, inappropriate repairs, making unauthorized changes or for using unapproved replacement parts. [. . . ] damaged cables or connections should be replaced by authorised qualified personnel or by the Customer Service department. Individuals who, due to their physical, intellectual or motor abilities, are incapable of operating the headphones safely must only use them under the supervision or direction of a responsible person. Repairs to the headphones may only be carried out by authorised specialist personnel or by the Customer Service department. Repairs to the headphones during the warranty period may only be carried out by a Customer Service department authorised by the manufacturer, otherwise no additional warranty claims can be considered for subsequent damages. Do not carry out any unauthorised reconstruction or customisation to the headphones. The headphones are supplied with the following components as standard: Headphones These operating instructions NOTICE Check the contents to ensure that they are complete and for visible damage. If the delivery is not complete, or is damaged due to defective packaging or through transportation, contact the Service Hotline (see chapter Service). The packaging materials are selected from the point of view of their environmental friendliness and disposal technology and are therefore recyclable. the recirculation of packaging into the material circuit saves on raw material and reduces generated waste. Dispose of packaging material that is no longer needed in compliance with the regionally established regulations. When putting the headphones on, pay heed to the side markings "R" (right) and "L" (left) on the ear pieces + 3. Arrange the adjustable headband 2 so that the headphones sit comfortably on your head and the ear pieces cover the ears. To listen to music, proceed as follows: Insert the 3, 5 mm jack plug 4 into the socket on the playback device. Then adjust the sound volume on the playback device to the desired level. These headphones are equipped with rotating and tilting ear pieces, so as to be able to fold them together and save storage space. Rotating the earpieces in the wrong direction can damage the earphones. To fold the headphones together, proceed as follows: + 3 into the head Rotate the two earpieces band 2 . TAKE NOTE Do not allow any liquids to penetrate inside the earclip headphones. [. . . ] The warranty is void in the case of abusive and improper handling, use of force and internal modifications not carried out by our authorized Service Centre. The warranty period is not extended through repairs made under warranty. Any damages or deficiencies found on purchase must be reported as soon as possible after unpacking, at the latest by two days after purchase. [. . . ]