Lysian baby earmuff is a hearing protection device for babies and toddlers of age 3 months to 36 months. Ear pads are made of noise reduction foam material covered with artificial leather. Muff shells are made of ABS - hard and anti-pollution. Elastic headbands are made of mixed colored polyester - soft, comfortable and adjustable to fit different sizes of heads. Ear muffs have professional certificates, with high noise reduction--25dB SNR to protect babies. Great for sleeping, traveling, parties, festivals, fireworks and high noise environment that may hurt babies' hearing. The earmuffs are with a carrying bag. You can easily take your earmuffs and protect your babies' hearing anytime and anywhere