Cars Headphones for Kids with Built in Volume Limiting Feature for Kid Friendly Safe Listening Parental Control: These headphones come equipped with an adjustable volume limiter to provide a safe and optimal listening experience for iOS and/or Android users. (See back of packaging for more details) Connectivity: Connect to any audio device with the line-in jack and listen to whatever you like. Performance: Enter a world of your own and enjoy crisp quality sound from the makers of iHome. Comfort & Quality: Padded pivoting ear cushions and an adjustable headband allows for a comfortable custom fit. Perfect Gift: This will make the perfect gift or birthday present for your little Racer!