The ergonomic headband fits comfortably on every child's head as it is fully adjustable and can be used comfortably by your growing child. Built-in speaker drivers deliver fully balanced sound. Soft ear pads provide a comfortable and secure fit. The ear shells have soft foam cushions for superior comfort and safety. This toy is not suitable for ages under 3 years: It contains one or more of the following items marbles; small ball; or small parts. Recommended Age: Suitable for 3 years & Up Features Embrace your inner Avenger with these Avenger themes Aux Headphones suitable for all ages. Listen on any audio device with crystal clear sound. Avengers fans can take the music anywhere with Marvel Avengers Kids’ Headphones. These comfortable headphones feature fun designs inspired by the world of Marvel.