MOLDEX Battle Plugs 6498 with Cord New, Unopened MOLDEX Battle Plugs are earplugs with a high noise reduction rating (NRR) of 24dB. By opening the cap, the noise reduction can be lowered to 9dB, allowing for conversation without removing the earplugs. The included cord is easily removable. They also come with a case for convenient portability! 【Noise Reduction Rating】NRR 24dB (cap closed), 9dB (cap open) Reusable after washing with water. Instant purchase is welcome. Returns are not accepted.