Em’s 4 Bubs baby earmuffs are available with a variety of different headbands. Em’s 4 Bubs earmuffs use an adjustable headband to hold the earmuffs in place, preventing uneven pressure being placed on the sides of your baby’s head, like traditional earmuffs. All headbands are adjustable! Unlike some imitation products, Em's baby earmuffs ARE TESTED TO U.S. SAFETY STANDARDS. They offer industrial grade hearing protection!