iClever bth12 Bluetooth kids headphones give great audio and the feature of coming with LED lights that have multiple effects, light modes and colors on both sides of the headset. Four light modes are controlled by one independent button, which, when pressed in bluetooth mode, will turns off the lights for battery savings.Kids need good sound too--they'll love the built-in 40mm speaker unit, which provides rich bass and lifelike audio. Limit audio volume between 74, 85 and 94dB using combination keys so the volume switch is not accidentally touched. Let your kids love what they're listening to, at a safe volume.low-batteries are a thing of the past thanks to the amazing battery life in the BTH12 Bluetooth headphones. Packed with an 800mAh battery and has a playtime of 40 HOURS! it uses a USB-C cord for incredibly fast charging. Just 10 minutes gives you 4 hours of playtime! Use with AUX or wireless for ultimate versatility, Enjoy Bluetooth 5.0 technology with the iClever wireless headphones for a super-stable connection. One button controls play, pause and end and answer phone calls. The built-in microphone on these kids bluetooth headphones gives hands-free freedom for studying, homework, being in class or playtime.Your kids play rough and ours do too, which is why these children headphones can stand up to the tough treatment. The cushioned earpads and adjustable headband will ensure kids' comfort all day long.