1. Oval umbrella-shaped design, professional physical noise shielding, to create a quiet and good environment for your sleep 2. Nano silicone material, small and soft, comfortable to wear 3. 160-degree on-ear design, sleep will not rattle 4. Shark fin design to prevent falling off, even if you are lying on your side or turning over, it is not easy to fall out 5. Washable
