The JR460NC headphones provide completely safe sound for our little friends whether they are on the road or studying at home. Specially designed for children to fit perfectly on their ears and head, they are incredibly comfortable and easy to use. With the JR460NC headphones, children can read and play with absolute safety as they have a volume limit below 85dB and are made from materials that do not break or get damaged. With a battery life of up to 20 hours, they offer endless hours of fun for at least an entire week with just a 2-hour recharge. With Active Noise Cancellation technology, they prevent children from being distracted by external noises, and the built-in microphone allows them to easily communicate with their friends or teachers.