A 100% Barbie design! Kid-safe! Volume limited to 85 dB to protect children's ears! Can answer calls. With microphone and control buttons (play/pause and volume adjustment). Foldable and adjustable! Very light, it slips easily into a bag. Up to 12 hours of battery life in wireless mode and unlimited use with its included audio cable, durable and detachable. Compatible with all smartphones, tablets and other media players with Bluetooth or headphone output. Long-lasting rechargeable battery. Recharges via USB-C port (cable included).