VOLUME-LIMITING TECHNOLOGY: KidJamz headphones utilize a built-in volume limiter to maintain the sound pressure level (SPL) below the recommended 85dB limit, keeping young ears safe and helping build lifelong good listening habits; a built-in switch allows the volume limiter to be disabled temporarily so KidJamz can still be enjoyed in noisy environments, such as while traveling LIGHT-UP DESIGNS: multicolor LED lights with 8 color patterns illuminate the graphics on each ear cup with no batteries required, giving each KidJamz headphone a vibrant and unique style thats hard for kids to resist and easy for parents to love! DURABLE & COMFORTABLE: built to last, KidJamz provide outstanding durability with a tangle-resistant cable while padded earpads and an adjustable cushioned headband to provide a comfortable and secure fit for boys and girls ages 4+ BUILT-IN HEADSET: Integrated microphone and remote button can be used for online learning, video chatting, gaming, and phone calls w