1. Material: plastic
2. Curved surface design, easy to disassemble and install, remove sharp burrs and refuse to scratch the surface of the headset
3. Seamless fit, no dust
4. No need to remove, does not affect charging
5. Waterproof and compression resistant, not easy to yellow
6. Real machine mold opening, corresponding hole position, comfortable hand feeling
7. Anti-fouling and waterproof coating, can be removed by gently wiping with a wet towel
8. With carabiner, it can be hung on the bag/key, don't worry about losing
9. Weight: about 15 grams
