?Durable Quality & Battery, 1-Year Warranty?The Wireless Kids Headphones are made of safe and friendly materials, with a built-in rechargeable battery that fully charges in about 2 hours and lasts up to 12-45 hours. They are compatible with iOS and Android devices, smartphones, tablets, and more. We promise a 1-year warranty and 24-hour Customer Support Service. ?Safe 85dB Volume Limit?These are also toddler headphones, so we've configured them with an 85dB volume limit. Even if they're used by toddlers, they won't damage their hearing, making them great for kids of all ages. The earphone also has a TF card slot, which is convenient for children to download their favorite music and insert it into the earphone for listening. ?Detachable HD Boom Mic?Kids Bluetooth Headphones have a built-in mic and 360° rotating HD boom mic for calls, with excellent sound pickup function, making your child's voice clearer. The headset has superior audio quality for an immersive audio and music experience. The kids headphones are adjustable, stretchable, and folding for storage. ?Wireless & Wired Mode?The Cat Ear Headphones for Kids adopt the newest Bluetooth 5.1 version, making it very easy to connect with your equipment. When it runs out of power, don't worry! We also equipped it with a 3.5mm jack braided anti-tangle audio cable so you can keep enjoying your music. The cable supports control from a variety of devices. ?RGB LED Light Up Cat Ears?The Riwbox CF9 Kids Bluetooth Wireless Headphones feature a cute cat ears design with RGB tricolor flashing LED lights. There are also illuminated cat paw buttons on the sides of the earcups that flash to the rhythm of the music, making children look even cooler. These headphones are great gifts for girls, kids, children, and teens.