1. Material: silicone
2. Nano silicone + slow rebound sponge, soft skin-friendly, comfortable to wear
3. Immersion noise reduction, in-ear design, replaceable earplugs head
4. Multi-layer acoustic noise reduction design, acoustic wave filtration, noise reduction effect is more obvious
5. Repeatable, 1 second quick wear, let all the noise subside, compact and portable
6. Weight: about 36 g