Noise Cancelling Earplug

Type: NC-1
Spec.: D: 1.2cm H: 2.5cm
Weight:2G
Explain:
This earplug is made of slow rebound sponge; it can reduce the interference caused by noise. It can be used in many noisy areas, such as airport, mine, factory workshop, etc. It's a good choice for the elderly and insomnia.