VOLUME-LIMITING TECHNOLOGY: KidJamz utilize a proprietary volume limiter built into the speaker structure to keep the sound pressure level (SPL) below the doctor-recommended 85dB, keeping young ears safe and helping build lifelong good listening habits; hidden switch allows parents to disable the volume limiter so KidJamz can be used in noisy environments DESIGNED WITH KIDS IN MIND: we set out to make KidJamz as safe and frustration-free as possible with an adjustable headband and vinyl earpad cushions that provide a comfortable and secure fit for boys and girls ages 4-14 DURABLE CONSTRUCTION: engineered with fewer moving parts, the KidJamz provide outstanding durability thanks to robust plastics, a tangle-resistant cable with reinforced connectors, and a flexible headband that can be bent and twisted in any direction without breaking BUILT-IN HEADSET: Integrated microphone and remote button can be used for distance 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