About this item 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 DESIGNED WITH KIDS IN MIND: we set out to make KidJamz as comfortable and frustration-free as possible, utilizing an adjustable headband, swiveling earcups, and padded earpads and headband cushion to provide a comfortable and secure fit for boys and girls ages 4+ DURABLE CONSTRUCTION: built to last, the KidJamz KJ45 provides outstanding durability with a tangle-resistant cable and flexible metal headband that can be bent in any direction without breaking BUILT-IN HEADSET: Integrated microphone and remote button can be used for online learning, video chatting, gaming, and phone calls WIDE COMPATIBILITY: works with all devices that use a standard 3.5mm (1/8”) headphone/AUX jack including Kindle Fire tablet, iPhone/iPad/iPod and other phones/tablets (3.5mm adapter may be required depending on version and available connector), portable gaming devices, mp3 players, PCs, laptops, computers, gaming consoles and controllers, and portable DVD players