MULTIPOINT CONNECTIVITY: Stream audio wirelessly from a single Bluetooth device - like a phone or tablet - to multiple KidJamz Share KJ55BT-S headphones 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 hidden button combination lets parents disable the volume limiter temporarily so KidJamz can still be enjoyed in noisy environments, such as while traveling LIGHT-UP DESIGNS & 4 AUDIO MODES: multicolor LED lights with 8 color patterns illuminate the graphics on each ear cup for a vibrant look; optional customization with a personalized name and/or graphic is also available; plus, 4 distinct audio modes let kids further personalize their listening experience at the touch of a button 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; a built-in rechargeable battery provides up to 40 hours of battery life in Bluetooth mode; note: Sharing Mode is only available when used wirelessly 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 kj55bt