Engineered to bring more professional and safe sound to children, Tribit kids was born. As always, Tribit Kids Headphone provides the gorgeous sound you expect. Tribit acoustic engineers use professional ear simulator to measure the LAeq to create this headphone that strictly conforms to the 85dBA volume limit recommended by CDC - safe and free to wear the headphone even for 8 hrs a day without exceeding the daily noise dose. Plus a 94dBA volume is available for noisy ambience use. Crafted from recycled and sustainable material, the Tribit kids headphones with mic is RoHS-certified and totally free of any harmful material. Plus, this earphone holds on any falling, twisting, folding and retracting without any bending or breakage. And the soft, comfy earmuffs will never come off.