Safe & Healthy Listening: Our bluetooth headphones meet strict US market regulations and have built-in volume limiting technology (85/94dB) to protect children's sensitive hearing. Plus, they're CPSIA certified and BPA-free for total worry-free use Super Durable & Foldable: These wireless headphones feature a reinforced headband hinge that can withstand school bags, playgrounds, and bumpy environments.Kids headphones for travel are foldable and compact, convenient for carrying and storage All-Day Comfort: Engineered for extended wear with an lightweight build and ultra-soft memory foam ear cushions. The adjustable, ergonomic headband fits a wide range of head sizes comfortably and allows room for your child to grow Bluetooth 6.0 & Built-In Mic: Enjoy high-quality audio with Bluetooth 6.0 with this wireless headphones for stable, cord-free streaming from your smartphone or tablet.The built-in microphone allows clear voice calls and interactive learning—perfect for online classes, games, and video chats 60H Playtime & Quick USB-C Charging：The OHR668 kids bluetooth headphones offer up to 60 hours of battery life. A 5-minute quick charge via USB-C cable provides 2 hours of playtime. Compatible with 3.5mm audio cables for high-definition, lossless audio experience The Gift of Safe Sound: acer kids headphones are the perfect present for any child. They provide a safe listening environment for learning and fun, whether at school, on a road trip, or during a flight. An ideal gift for birthdays, holidays like Christmas and Easter, back-to-school season, or just because acer OHR668 Kids Bluetooth Headphones