UBON Audio Bull 2.0 is a small size headphone designed specially for kids. A perfect headphone for your kid for his/her online classes. Enjoy comfort, freedom and the best sound around. Bluetooth 5.0 enables wireless connectivity, audio sound provides a dynamic listening experience and sculpted ear cushions allow for unprecedented fit and comfort around your ears. With a rechargeable battery offering 6 hours of performance and best music, videos and games, now you can dance alone or with a partner free from limits. A built-in microphone also allows for easy call access. Features: Bluetooth v5.0: connect to any Bluetooth-enabled device for amazing sound quality without the hassle of wires enjoy the same elevated experience and incredible sound acid eye has been delivering to concert halls, studios and living rooms for years. Best-in-class ergonomics: these headphones are ergonomically designed to fit the unique contour of your ears. You'll experience unprecedented comfort. Listen longer and enjoy it more. Listen your music, videos and games - easily and wirelessly. Built-in microphone: enjoy more natural sounding voice calls with a built-in microphone with echo cancellation technology. Now just stop worrying about Wires hanging from here and there. Pair with any Bluetooth device, connect and play