1. Silicone material, soft texture, comfortable to wear 2. Humanized radian, no discomfort after wearing for a long time, and the earphones are not lost when exercising 3. Soft and comfortable, it can effectively prevent sweat, prolong the life of the earphone, and prevent it from falling off during exercise 4. Real machine mold opening, accurate opening 5. Non-slip, oil-proof and anti-fouling, close to the ear to prevent falling off 6. Install left and right according to the corresponding holes of the earphone 7. Note: The price is a price, not a pair, divided into left and right (RL)