1. First, use an abrasive to smooth out the scratches on the surface.
2. Then use a waxing tool to apply wax to the surface after friction and spread it evenly
3. Finally, use a bottle of disinfectant to wipe the surface of the charging bin clean.
4. After all the steps are done, the headphones are as good as new, smooth and smooth, and waterproof, which is really good.
1. Sand with different types of sandpaper, starting with a rough model of the foot, and then continuously grinding with a finer one over and over again.
2. If it is troublesome, spray paint directly. If it is smooth, spray gloss oil. If it is matte, spray matte paint.
3. You can buy a headset protective case online, which can protect Bluetooth headphones well and is more beautiful.
If not serious can continue to use! If it is serious, replace it