Volume limitation to 85 dB with a reduced volume of the children's headphones to 85 dB there is optimal hearing protection for children's earsThe flashing LED lights of the overear strap headphones with child-friendly design provide a cool lighting effect for children from 4 yearsThe cable headphones fit in every children's backpack and with the adjustable and foldable arms are ideal for traveling by car or planeThe 35 mm jack plug of the headphones is compatible with common devices such as Tip Toi pen Toniebox tablet smartphone and learning computerScope of supply 1 ear cup children Blink'n Kids 2 batteries LR44 1 instruction manualGold-plated plug with low contact resistance for secure signal transmission Foldable enabling space-saving safe transportation Children's sensitive ears are protected by a limitation of the sound pressure to max 85 dB Flashing LEDs for cool light effects