Safe and Stylish Listening for Kids. Let little ones enjoy music, movies, and games safely with these adorable Hello Kitty Children's Headphones. Designed for kids aged 3 to 7, these headphones feature a volume limit of 85 db to protect young ears. The adjustable padded headband and soft-touch ear pads ensure a snug and comfortable fit, while the 3.5mm universal jack makes them compatible with most devices.