RevoNext Technology HK Company specializes in R&D and production of best in ear earphones and is popular among customers. The earphone case series is available in a wide range of types and specifications. The product is not prone to discoloration. It will be not easily affected by chemical stains, tainted water, fungi, and mold. The earplug is made of medical level silicone. People are able to set assured that this product will never be out of shape under harsh and extreme industrial environments. Users can choose different sizes / types of ear hooks according to specific needs.
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