Support?24 months Hassle-Free limited warranty and quick response customer service, if you have any questions while using, please contact our Customer Service via email or through the contact information on the instructions. We're dedicated to your satisfaction. ?Foldable & Portable Design?The lightweight and foldable feature makes these wired headphones easy to pack into the bag for storage for carrying to travel or storage in the bag. ?Tangle-free & Nylon Braided Cord ?These kids headphones with premium 4.9ft (1.5m) nylon braided cord which would not tangle or kink. And the 3.5mm headphone jack can be compatible with Chromebook Kindle Tablet Laptop etc. ?Easy to Control?Nivava K16 Over ear headphones kids are designed with a microphone, the multifunctional button on the headphone cord allows you to answer/hang up calls, and play/pause. And the 3.5mm headphone jack can be compatible with Chromebook Kindle Tablet Laptop PC MP3/MP4 etc. ?Adjustable & Comfortable Fit?These headphones kids are lightweight and have adjustable headbands which are perfect for kids/children and adults. The soft earmuffs on both sides provide you comfort for long wearing.