About this item ACTIVE NOISE-CANCELLING HEADPHONES: The ANC switch puts the world on mute so that kids can listen clearly in loud environments without the need to increase the volume beyond safe sound listening levels. These headphones make daily noise and background sound up to 22 dB quieter, complemented by 78% noise isolation (@ 1 kHz). LIMITED VOLUME FOR KIDS’ HEARING SAFETY: A limited volume of 85 dB is the maximum safe sound listening level as recommended by many organizations. Intelligent digital signal processing imperceptibly limits the volume so that listeners don’t even notice. These are the perfect lightweight headphones for boys, girls, and teens! WIRELESS HEADPHONES WITH BLUETOOTH FUNCTION: The one-touch Bluetooth pairing with smartphones, tablets, and other compatible devices makes for hassle-free listening, while a 30-foot range allows free movement! The wireless mode eliminates all dangers of entanglement in audio cables. Built-in microphone, great for online learning. LONG BATTERY LIFE: Enjoy up to 35 hours of non-ANC playtime (23 hours with ANC) and 200 hours of standby. The PuroQuiet stands up to all-day play – and then some. Quickly recharge the lithium-ion battery with an included USB cable or switch to wired use with the included volume-limiting audio cable. 30-DAY MONEY BACK GUARANTEE: The warranty period for our products is 1 full year. If you have an issue with one of our products, we want to help! We want to provide your kids with the best hearing experience possible. If that doesn’t happen, we offer a 30-day money-back guarantee. It’s as simple as that!