HD Microphone + Immersive Sound Quality:Crystal-Clear Calls & Rich Audio,High-definition mic ensures voice chats stay crisp during online classes. Precision-tuned drivers deliver balanced bass/mids for music, audiobooks, and cartoons without distortion. Safe Volume ProtectionWe specially designed for kids headphones with a maximum volume of 85 decibels, which can well protect the kids hearing, even if the kids adjusts the volume by himself/herself, parents can also feel at ease. Meanwhile, the internal dynamic drivers produce a high-fidelity sound quality that is more suitable for kids, allowing them to enjoy a happier music time. 55-Hour Extended Playtime: Exceptional battery life for all-day use.Supports 55+ hours playback (volume at 60%)covers 5 school days, long flights, or weekend adventures. Charges fully in 2 hours via USB-C. CloudComfort Design: Foldable & Adjustable Fit All-Day Comfort for Growing Kids Fold-flat hinges reduce bulk in backpacks. Memory foa