PERSONALIZED LIGHT-UP DESIGN: Customizable LED-backlit artwork lets you personalize the KidJamz for a unique design that’s fun for kids and easy to recognize in school; choose one of our pre-designed graphics and add your own text to create a completely unique design; multicolor LED lights with 8 color patterns illuminate the graphics on each ear cup, giving each KidJamz headphone a vibrant and unique style DURABLE & COMFORTABLE: engineered with fewer moving parts, padded earpads, and a flexible cushioned headband, KidJamz provide outstanding durability and a a comfortable and secure fit for boys and girls ages 4+; a built-in rechargeable battery provides up to 40 hours of battery life HYBRID WIRED & WIRELESS FOR MAXIMUM COMPATIBILITY: works with all Bluetooth audio devices as well as devices that use a standard 3.5mm (1/8”) headphone/AUX jack including Kindle Fire tablets, portable gaming devices, mp3 players, PCs, laptops, gaming consoles and controllers, and portable DVD players; 3.5mm audio cable included BUILT-IN HEADSET & CONTROLS: Integrated microphone can be used for online learning, video chatting, gaming, and phone calls, while the built-in controls let kids adjust the volume and control media and phone calls without reaching for their phone or tablet each time MEE audio KidJamz KJ55BT wireless headphones are designed to protect children’s hearing as they listen to movies, music, and games, giving parents peace of mind while kids enjoy the comfortable fit, long battery life, and multicolor LED-backlit designs on each earcup. Optional personalization lets kids and parents further customize the KidJamz by selecting a different design, adding text, and even uploading completely bespoke artwork!