About this item Safe Volume & Stereo Sound: These headphones feature built-in volume limiting technology (85dB) to protect children's sensitive hearing. Equipped with a 40mm speaker unit, they deliver rich bass and realistic sound quality. Ultra-durable & 90° Rotatable: Designed with a reinforced headband hinge, these wireless headphones can withstand the rigors of school bags, playgrounds, and bumpy environments. They are foldable and can rotate 90°, making them convenient for carrying and storage. Lightweight & Comfy Fit: Featuring soft memory foam ear cushions and a lightweight frame (only 6.35 ounces), these toddler headphones ensure all-day comfort for children, whether studying or on long flights. The adjustable headband fits almost any head shape. Bluetooth 5.4 & Built-In Mic: Enjoy high-quality audio with Bluetooth 5.4 for stable, cord-free streaming from your smartphone or tablet. The built-in microphone provides hands-free freedom for studying, doing homework, being in class,