Flexible Ear Loops / Low Friction Cable, Wearing style is down for play time and other on the go activities. Low friction cable offers maximum comfort and eliminates tangled cables. PVC free and environmentally friendly. Noise Isolating Design, In-ear fit and customizable ear tips offer up to 16 dB noise isolation from the environment so children will not have a need to turn the volume up so loud. Volume Control Protection, the built in sound pressure levels music source by up to 40 %