Using these earphones is easy. First, choose the right size of foam or silicone ear-plugs for a snug fit. Then, put the earphones on by looping the cable over your ears. Connect the cable to your audio device using the gold-plated MMCX connector. You're ready to enjoy high-quality music or start your recording and mixing work. When using them, make sure the ear-plugs are properly inserted to get the best sound isolation. Don't turn up the volume too high to protect your ears. For maintenance, keep the earphones in the zipper case when not in use. Clean the ear-plugs regularly with a soft, dry cloth. Avoid getting the earphones wet and don't pull the cable too hard. With proper care, these earphones will serve you well for a long time.