Barbie 30359 Kid Safe Over the Ear Headphone w/ Volume Limiter, Styles May Vary by Sakar Kid-Safe Volume Limiting Technology Suitable For Children Ages 3-9 Padded, Extra Comfortable Ear Cups High Quality, Full Range Stereo Sound Works With All Portable Devices That Feature A 3.5MM Stereo Jack Playful Barbie Design, Styles May Vary Connectivity technology : Wired High Quality, Full Range Stereo Sound Works With All Portable Devices That Feature A 3.5MM Stereo Jack. Kid-Safe Volume Limiting Technology Suitable For Children Ages 3-9. Padded, Extra Comfortable Ear Cups And Bendable Headband.