Product name: professional noise reduction earplugsMaterial: Nano silica gelNoise reduction rate: 40DBSpecification: 17*14mmWeight of a single earplug: 1.5gApplicable people: unisexApplicable scenarios: work/travel/sleep/restProduct list: Noise reduction earplugs*2 (L, R), storage box*1Nano-silicone material, soft and comfortable, not easy to stick to dust.160 close-to-ear design, comfortable to wear, not easy to fall off, and ergonomic.3 layers of sound insulation tape, closed ear canal, -40dB noise reduction effect. It can be used during daily work, travel and sleep.Supports repeated washing, waterproof, dustproof and anti-static.In order to achieve better sound insulation, it is best to put the earplugs in warm water and wash them before wearing them.