1) затычка для ушей (у пловцов и т. п.)
2) мед. ушной тампон
• Noise blocker
• Noise blocker-outer
• Noise reducer
• One of a swimmer's pair
• Silencer of a sort
• Silencer?
• Sleep aid
• Sleeping aid
• Sound barrier
• Sound stopper
• Stick it in your auditory canal
• Swimmer's stopper