Baby Headphones Reduces Unpleasant Sounds Lime green earmuffs made of soft cushion material, with an adjustable headband. - Color: Lime green and black - Ear cup material: Soft cushion material - Headband design: Adjustable design Used twice for riding the train. The part that touches the ears is soft, so it was convenient. I think it can be used for babies under 1 year old. Not for newborns! Thank you for viewing. ⚠️ I'm not sure about the size, so I'm hesitating between Yamato and Yu-Pack for shipping. Thank you.