Kenu Groovies | Premium Wired On Ear Kid's Headphones | Blue SAFE FOR YOUR EARS - Groovies uses a special volume limiting technology that maintains the sound pressure level at 85dB making them safe children's headphones. PREMIUM SOUND - Groovies deliver premium sound, using the same drivers in kids headphones that are in high end adult headphones. DURABLE CONSTRUCTION - Groovies are durable with no hinges to break, and they adjust to fit kids ages 3 and up. Also backed by Kenu's incredible customer service and warranty. SHARELINK AUDIO SHARING - Groovies sharelink feature allows another person to listen in to the same show, song or game.