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Noise Reduction And Sound Isolation Earplugs Concert High Fidelity Filter Earplugs Wholesale Blue Filter Earplugs Double Tail Color:Orange Sharks are a group ofProduct Properties Type: Earplugs Material: liquid silicone and filter Connecting line: None Noise reduction rate: 23DB (dB) Function: noise reduction and filtering Scope of use: DJ, bar, nightclub, party, rock, drum, concert 1. What is a music silicone earplug? A: This earplug is different from regular silicone earplugs. It is well known that conventional earplugs are made from a simple structure and 100% pure silicone molded. Its main function is to