Let your child's imagination soar with Barbie wireless headphones! Designed for endless fun, these headphones offer up to 40 hours of playtime on a single charge, so the adventure never has to end. With a built-in microphone for easy calls and clear conversations, your little one can stay connected while on the go. And with just a quick 2-hour charge time, they'll be ready for hours of music, movies, or games in no time.   Specifications:  90 Foldable and turnable ear muffs Built-in microphone Play time: 40 Hours (Volume At 60%) Talking time: 45 Hours Charging time: 2 Hours Charging port: USB-C Bluetooth version: V5.3 Working distance: 10 Meters Battery specs: 3.7V 300Mah Charging voltage: 5V Driver: 40 X 2Mm Impedance: 64Ohm S.P.L Frequency range: 2.4Ghz-2.48Ghz Sensitivity: 100Db+/-3Db