Product description About this item 85 dB volume for hearing protection: The on-ear headphones from gorsun protect boys and girls from hearing damage if they play at a limited volume of 85 dB for an extended period of time. Designed for children over 3 years old. Well compatible with almost all Bluetooth devices through wireless connection. In Line-in mode (cable status) you do not need power on the headphones and you can also use them without a battery. For the best entertainment experience, we use a long-life battery that can play music for up to 12 hours. Safe and soft food-grade material with no sharp corners protects your children from scratches. The earphones are durable which means they can be twisted or bent. Premium quality and you don't have to worry about children's naughty behavior towards it. The headphones meet the international CE, TV, EN71. Child-friendly design makes the headphones a popular gift for children. Cute rubber ears must also go away in the packaging. Foldable design makes gorsun children's headset easily folded, suitable for storage in backpack, desk at school or suitcase. Carry the lightweight headsets for kids to school, camping, hiking and other outdoor activities.