1. High-density soft sponge, comfortable to wear, care for both ears
2. High-peripheral heat-sealing technology, smooth and beautiful, good elasticity, and quick installation
3. Soft and comfortable, breathable, durable, sound insulation and noise reduction, improve sound quality
4. The real machine opens the mold, close to the earphone, it is stable and not easy to fall off
5. Material: protein skin
