With the JVC HA-KD7 Blue Duopack, your children can listen to music or watch videos in the car without disturbing the sound. They each have their own headphones and can choose their own songs. The children's headphones have a volume limit, meaning that the sound cannot exceed 85 decibels. This way, your son or daughter will not suffer any hearing damage. The headphones come with stickers that allow you to decorate them. When the unrestricted devices are used, the headphones can produce a higher volume.