Functional and amusing, the KIDdesigns Sonic over-ear Bluetooth headphones make a wonderful accessory for kids. The 45 hour battery life provides hours of non-stop listening experience, and the volume limiting protects your little ones' ears from harmful sound levels. The playful Sonic theme offers an interesting touch to these headphones. Enjoy up to 37 hours of continuous playtime between charges, or use the included 3.5mm audio cable when Bluetooth is not available. | KIDdesigns Barbie Over-Ear Bluetooth Kids Headphones with Microphone - Pink