Electronic earplugs EARMOR M20 earmor This is a used item. It works, but I feel that the built-in battery drains quickly, so I am selling it. It should last for a few hours depending on usage. I think the condition is also good. Please check the images. I will sell it to those who are considering buying a new one or who want to try it out. - Model name: EARMOR M20 - Function: Electronic earplugs - Accessories: Charging case, USB cable, instruction manual, sponges of various sizes Since it has a built-in battery, it cannot be transported by air. Please read the profile before asking questions or purchasing. #Earmuffs #Earplugs #Earplugs #Earplugs #Earmuffs