The Green Lion GL-400 Kids Wireless Headphone is designed for kids to listen to music without damaging their hearing system. This headphone has about 20 hours of playing time and takes less than 2 hours to charge. Due to the Bluetooth v5.3 used, the Green Lion Headphones can stay connected within a range of 10 meters. Lastly, the Green Lion GL-400 Kids Wireless Headphone has different light effects, all appealing to kids.