[All-day Battery Life and Wide Compatibility]: Our kids earbuds are designed with a high-capacity 165 mAh battery, allowing children to enjoy up to 10 hours of continuous music, study time, and calls. They are widely compatible with electronic devices, including smartphones, tablets, and computers running on IOS/Android/Windows systems. [360° Bendable Without Deformation and IPX5 Waterproof]: Our open-ear earbuds are made with a high-strength memory titanium neckband and food-grade pads, which are skin-friendly and can support 360° bending without any deformation during daily use. Certified as IP55 waterproof, our open-ear Bluetooth headphones are resistant to sweat, dust, and moisture. They are excellent headphones for your kids' outdoor and indoor sports and normal use. [High-Fidelity Audio and Superior Clear Calls]: Our kids headphones wireless are equipped with a Bluetooth 5.2 chip, ensuring a quick pairing with most devices and a stable connection up to 33ft without any lags or delays. With a 16.2mm full-range dynamic driver, they can significantly reduce sound quality loss and provide pure, balanced audio and clarity output for all music genres. The built-in MEMS microphone allows your kids to enjoy high-quality conversations anytime, anywhere. [Comfortable, Lightweight, and Stable Fit]: Our toddler headphones feature an enhanced ergonomic design that will keep 100% comfortable on your kids’ head even during activities. Even during intense physical activity, the headphones can remain stable. The special structural design ensures that our kids bluetooth headphones are compatible with glasses and helmets. Besides that, our open ear headphones weigh only 30 grams, offering maximum comfort. There's no need to worry about discomfort. [Ultra-Safe Design]: Our headphones for kids feature a new generation open-ear design - Air Conduction Technology. They can directional deliver premium audio without muffling kids' ears which can ensure your kids can hear surrounding noise. This special design ensure your kids enjoy unique listening experience while studying at home, school, train, all while avoid some dangerous situations from happening. 85dB volume limitation design fully meets the recommended level to prevent hearing damage.