Wide compatibility: With standard 3.5mm audio jack suitable for listening to music or audiobooks. Compatible with your devices like cellphones, laptop, computer, Chromebook, MP3, MP4 and other Audio devices. Inline Microphone: The HD microphone on the braided cable provides clear, hands-free communication, with one button to control music play and phone calls. Adjustable design: Adjustable headband meets the requirement of all head sizes. Lightweight design for kids aged 3 and up, and won’t become their burden. The wonderful sound is matched by standout comfort. Foldable and Portable: Collapsible design provide convenient take out. Fold the headphone up and take it anywhere while you are on airplane, travel or in a car. Just enjoy your music everywhere with your kids. AILIHEN Comfortable Volume Limited 93dB Kids Safe Headphones: A must gift headphones for your children with a volume limited hearing protection and an adorable design and pillow soft headband for ultra comfort. What’s more, memory-protein cushioned earmuffs also help you minimize tiredness.