Features: On-ear earphones has padded cushions that are lightweight and comfortable Adjustable headband allow a perfect fit. Suitable for toddlers, teenagers and adults. Will protect kid's hearing with the built-in 93 dB volume limited. Foldable for easy and convenient storage. 4.7 feet nylon braided tangle-free cord. Noise Isolating. Universal Compatibility: Nilogie A21 Kids Headphones are compatible with smartphones, tablets, computers, laptops and all 3.5mm audio jack devices. Simple plug in and play. Please note that there is NO microphone, remote or volume control on these headphones. Warranty: 12 Month Easy Replacement 30-Day money back guarantee with no question to ask