1).NRR:22 dB

2).Protect kids' hearing

3).Adjustable，for most kids' head size, and keep using it as child grows

4).Padded headband and ear cushions for long-lasting comfort

5).Compact folding design

6).Transparent ear cup, pattern on the foam piece is visible 

7).Replaceable foam piece with variety of kid-friendly pattern,that kids will want to wear