The adjustable band allows you to get the perfect fit for your head shape. It is not only suitable for your children, but also for many adults.The headphone cord length is 45". It's very durable and not tangle, suitable for kids, children, not easily damaged.The wide-compatible 3. 5mm plug allow the headphones to be used with all 3. 5mm jack devices.With the soft cushion protein earmuff, it is not only comfortable, but also minimize tiredness.Please note that there is NO microphone, remote or volume control on these headphones.