Kid-Protection Volume Limited: Rabbikid Bluetooth Kids Headphones limit the volume of toddler headphones to 94dB. No need to worry about child's hearing being hurt, even without parental supervision Wireless & Wired Mode: Choose the way you prefer; You're free to use our Rabbikid wireless headphone continuously for up to 80 hours after a single charge(Type-C charging). If the build-in battery is out of power, you can recharge the battery or use the audio cord to keep the headphone work Surround Sound & Built-in Microphone: Rabbikid Wireless Kids Headphones are equipped with HD & noise canceling microphone making them perfect for Online Courses and Voice calls, to ensure hand-free operation Comfortable & Foldable(Easy to carry and storage): Rabbikid over-ear headphones have super soft and breathable ear cushions, which can make better isolation from ambient noise and good breathability Rabbikid Kids Bluetooth Headphones, Wireless Headphones with Microphone, 74/85/94dB Volume Limited, 80H Playtime, Foldable Over Ear Headphones for School, Home, or Travel, Yellow