Baby Banz Earmuff is the solution to protect your baby's hearing. serves to protect your baby's ears from noise that can harm his hearing. In addition, the Baby Banz Earmuff is designed with a funky style that is easy to carry wherever you go. - Dimensions : 10x12 cm (folded) and 17x13 cm (opened) - Fully been tested - Provides hearing protection from loud noise - The ear cups slide up and down on the headband in order for the earmuffs to fit a child of 3 months -2 years of age - Min Opening : 7,62 cm; Max Opening : 17,8 cm - Cup Height : 8,94 cm; Cup Width : 7 cm