Using these Behringer HO 66 headphones is a breeze. Just plug the cable into your audio device using the included adaptor if needed, adjust the headband to fit your head comfortably, and put the headphones on. You can then start enjoying your music, podcasts, or other audio content right away. When using them, make sure not to turn the volume too high for a long time as it may damage your hearing. Also, keep them away from moisture and extreme temperatures. For maintenance, you can use a soft, dry cloth to wipe the ear cups and the headband regularly. If there's any stubborn dirt, you can slightly dampen the cloth with water. Don't use harsh chemicals to clean them as it may damage the materials. When not in use, store them in a cool, dry place, and try to keep them in a case if possible to prevent scratches and other damages.