We have a total of 6 pairs of ear caps that can be replaced to keep your headphones clean and tidy. When you go out, you can put the spare ear cap in the silicone cover, so you don't have to worry about losing the ear cap and not finding a spare one. It is convenient and clean to use. When you want to go out for a run or fitness, you can change our ear cap and install our auxiliary line, so that the headphones can be firmly fixed in your ears, making it more convenient for you to go out for a walk, run or fitness, without worrying that the headphones will fall off. The ear cap design is very comfortable, and the silicone material is also very soft. Let you listen to music or books more comfortable. When you want to charge your Bluetooth headset, you can remove the ear cap and put it in the ear cap storage bag, which is very convenient. It won't stain or lose the earcap because it's in the Earmuff storage